user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: The academic advisor of Charles Glover Barkla discovered what subatomic particles? 
Knowledge Triplets: Physics, type.domain.types, Subatomic particle composition
Barkla, astronomy.extraterrestrial_location.on_celestial_object, Moon
m.02wm_7d, education.education.institution, Trinity College, Cambridge
Family, type.property.reverse_property, Particles
University of Cambridge, location.location.containedby, Cambridge
Charles Glover Barkla, people.person.gender, Male
United Kingdom, common.topic.subject_of, Line Digital Ltd
Joseph John Thomson, base.nobelprizes.nobel_prize_winner.nobel_honor, m.0646h0k
Joseph John Thomson, education.academic.advisors, Edward Routh
Interactions, type.property.schema, Subatomic particle
Academic, type.type.properties, Academic advisors
m.02xlkbb, award.award_honor.award_winner, Charles Glover Barkla
Scientist, common.topic.notable_types, Profession
Physics, freebase.domain_profile.users, prakashan75
Joseph John Thomson, education.academic.advisees, H. Stanley Allen
Edward Routh, education.academic.advisees, Joseph John Thomson
Charles Glover Barkla, people.person.profession, Physicist
Particle, type.property.schema, Particle-Antiparticle
Charles Glover Barkla, people.person.employment_history, m.02kq4gd
Joseph John Thomson, base.nobelprizes.nobel_prize_winner.nobel_honor, m.0646h0k
Joseph John Thomson, common.topic.image, J
Niels Henrik David Bohr, people.person.profession, Physicist
Charles Thomson Rees Wilson, people.person.ethnicity, Scottish people
m.02kq4gd, business.employment_tenure.person, Charles Glover Barkla
Electron, base.kwebbase.kwtopic.has_sentences, The number and arrangement of electrons around a nucleus determine the atom's properties.
Electrons, base.skosbase.skos_concept.equivalent_topic, Electron
Topic, type.type.properties, Properties
Academic, common.topic.article, m.03j456c
John Zeleny, people.person.profession, Physicist
Physics, freebase.domain_profile.users, lyuden
Subatomic particle, freebase.type_hints.included_types, Topic
Ernest Rutherford, people.person.profession, Physicist
Physics, type.domain.types, Hadron
John Sealy Townsend, education.academic.advisors, Joseph John Thomson
m.0n1hw_h, education.education.student, Joseph John Thomson
George Paget Thomson, people.person.place_of_birth, Cambridge
Physicist, people.profession.specializations, Theoretical Physicist
Edinburgh, common.topic.article, m.02m7k
Physicist, base.descriptive_names.names.descriptive_name, m.010kdy9k
Magnetic moment, type.property.schema, Subatomic particle
Subatomic particle, type.type.domain, Physics
Charles Glover Barkla, common.topic.article, m.023byq
Subatomic particle, type.type.properties, Magnetic moment
Particles, rdf-schema#range, Subatomic particle
Academic, freebase.type_profile.strict_included_types, Physically Instantiable
Physics, freebase.domain_profile.users, umwelt
Niels Bohr, fictional_universe.fictional_character.occupation, Physicist
m.02kq0w4, education.education.institution, University of Cambridge
Physics, freebase.domain_profile.featured_views, Particle family
Physics, freebase.domain_profile.category, Commons
Family, type.property.schema, Subatomic particle
m.06445ds, base.nobelprizes.nobel_honor.subject_area, Electron
Physicist, common.topic.notable_for, g.1255fs4bv
Subatomic particle, type.type.properties, Antiparticle
Subatomic particle, common.topic.article, m.01f4c5
Physicist, base.descriptive_names.names.descriptive_name, m.0101ddrk
Joseph John Thomson, people.person.sibling_s, m.0v4xbcq
Physics, freebase.domain_profile.users, rhnshrma
Charles Glover Barkla 01, common.image.appears_in_topic_gallery, Charles Glover Barkla
Male, common.topic.article, m.05zpq8
Also known as, type.property.schema, Topic
Charles Thomson Rees Wilson, people.person.profession, Physicist
Charles Glover Barkla, education.academic.advisees, H. Stanley Allen
Physics, freebase.domain_profile.featured_views, Quark
Charles Glover Barkla, base.nobelprizes.nobel_prize_winner.nobel_honor, m.063r14_
Mass, type.property.schema, Subatomic particle
m.03lzgkm, common.webpage.topic, Edinburgh
Particle physics, freebase.equivalent_topic.equivalent_domain, Physics
George Paget Thomson, common.topic.notable_types, Academic
Edinburgh, base.ontologies.ontology_instance.equivalent_instances, m.09dvgsc
Subatomic particle, freebase.type_profile.equivalent_topic, Subatomic particle
H. Stanley Allen, people.person.profession, Physicist
Particles, type.property.schema, Fundamental interaction
Joseph John Thomson, education.academic.advisees, John Zeleny
Physics, freebase.domain_profile.users, santosucio
Academic, type.type.properties, Appointments, fellowships, etc.
Joseph John Thomson, education.academic.advisees, Charles Glover Barkla
Topic, type.type.properties, Subject of
Person, type.property.expected_type, Academic
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, His work related to that of Becquerel and Lorenz.
Academic, freebase.type_hints.included_types, Person
Joseph John Thomson, common.topic.notable_types, Academic
Subatomic particle, type.type.expected_by, Particle
Subatomic particle, type.type.properties, Generation
Electron, physics.particle.family, Lepton
Physicist, base.descriptive_names.names.descriptive_name, m.01066sxg
Physics, type.domain.types, Quark
Joseph John Thomson, people.person.profession, Mathematician
H. Stanley Allen, education.academic.advisors, Charles Glover Barkla
Charles Glover Barkla, symbols.name_source.namesakes, Barkla
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, Fellow member of Society for Psychical Research with physicists Lodge,  author Carroll,  evolutionist Wallace, poet Tennyson, and Conan Doyle.
Topic, freebase.documented_object.documentation, m.0kpqw_
Joseph John Thomson, common.topic.image, Jj-thomson3
Physicist, common.topic.notable_types, Profession
If the outer shell is not full, the atom can take electrons from other atoms., base.kwebbase.kwsentence.kwtopic, Electron
Edinburgh, common.topic.image, Edinburgh
Physicist, base.descriptive_names.names.descriptive_name, m.010flybs
Ernest Rutherford, people.person.profession, Scientist
J. Robert Oppenheimer, fictional_universe.fictional_character.occupation, Physicist
Physics, freebase.domain_profile.featured_views, Hadron
Joseph John Thomson, book.author.works_written, Application of Dynamics to Physics and Chemistry
Chemical properties of atoms depend on the number of electrons in the outer shell., base.kwebbase.kwsentence.kwtopic, Electron
m.09x2_29, common.webpage.topic, Edinburgh
m.07ndzwd, base.ontologies.ontology_instance_mapping.freebase_topic, Electron
Niels Henrik David Bohr, education.academic.advisors, Joseph John Thomson
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, He helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897).
Charles Glover Barkla, people.person.employment_history, m.02kq2sk
Physics, freebase.domain_profile.users, moonhawk
University of Edinburgh, education.educational_institution.newspaper, The Student
Particles, type.property.master_property, Family
m.03lsdr7, education.education.student, Joseph John Thomson
Physics, education.field_of_study.subdisciplines, Particle physics
Topic, common.topic.article, m.0kpqw_
joseph john thomson fellow-psychic with arthur conan doyle, base.kwebbase.kwconnection.sentence, Fellow member of Society for Psychical Research with physicists Lodge,  author Carroll,  evolutionist Wallace, poet Tennyson, and Conan Doyle.
Barkla, astronomy.extraterrestrial_location.type_of_planetographic_feature, Impact crater
joseph john thomson taught william henry bragg, base.kwebbase.kwconnection.subject, Joseph John Thomson
Particle, type.property.expected_type, Subatomic particle
Physics, freebase.domain_profile.featured_views, Particle generation
The electron was discovered by British physicist J.J. Thomson., base.kwebbase.kwsentence.kwtopic, Electron
Charles Glover Barkla, award.award_winner.awards_won, m.02xlkbb
Joseph John Thomson, book.author.works_written, Notes on Recent Researches in Electricity and Magnetism
Joseph John Thomson, education.academic.advisees, Lionel Robert Wilberforce
Edward Victor Appleton, education.academic.advisors, Ernest Rutherford
m.02kq2sk, business.employment_tenure.person, Charles Glover Barkla
Family, rdf-schema#domain, Subatomic particle
Spin, rdf-schema#domain, Subatomic particle
m.02wm_7d, education.education.student, Charles Glover Barkla
John Sealy Townsend, people.person.profession, Physicist
Antiparticle, type.property.schema, Subatomic particle
Physics, freebase.domain_profile.featured_views, m.0b66glm
The number and arrangement of electrons around a nucleus determine the atom's properties., base.kwebbase.kwsentence.kwtopic, Electron
Image, rdf-schema#domain, Topic
Physicist, common.topic.image, Physicists working in a government lab
Physics, type.domain.types, Magnetic moment
Particles, rdf-schema#domain, Subatomic particle family
Charles Glover Barkla, people.person.place_of_birth, Widnes
Electron, physics.particle.generation, First generation
First generation, physics.subatomic_particle_generation.particles, Electron
Emmett Brown, fictional_universe.fictional_character.occupation, Physicist
Physicist, people.profession.specializations, Mathematical Physicist
Physics, type.domain.types, Subatomic particle generation
Subatomic particle, freebase.equivalent_topic.equivalent_type, Subatomic particle
Joseph John Thomson, people.person.education, m.02wpwkg
George Paget Thomson, people.person.profession, Physicist
Joseph John Thomson, common.topic.notable_for, g.125ddfsdr
Physicist, people.profession.specializations, Astrophysicist
Antiparticle, rdf-schema#domain, Subatomic particle
Joseph John Thomson, book.author.works_written, Tendencies of recent investigations in the field of physics
Lewis Fry Richardson, people.person.profession, Physicist
Edinburgh, base.biblioness.bibs_topic.subsumes, Edinburgh
Charles Glover Barkla, education.academic.advisors, Joseph John Thomson
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, In 1884,  Thomson was chosen to replace Rayleigh as director of the Cavendish.
Spin, type.property.schema, Subatomic particle
m.08scd_h, common.document.content, m.08sdv1n
Charles Glover Barkla, people.person.nationality, United Kingdom
m.09dvgsc, base.ontologies.ontology_instance_mapping.freebase_topic, Edinburgh
Subatomic particle, common.topic.image, Hydrogen Density Plots
Academic, type.type.expected_by, Person
Generation, rdf-schema#range, Subatomic particle generation
Family, owl#inverseOf, Particles
Subatomic particle, type.type.properties, Family
Barkla, common.topic.notable_types, Extraterrestrial location
Joseph John Thomson, book.author.works_written, A treatise on the motion of vortex rings
Academic, type.type.properties, Research areas
Particles, type.property.expected_type, Subatomic particle
Charles Thomson Rees Wilson, people.person.nationality, United Kingdom
Interactions, rdf-schema#domain, Subatomic particle
Academic, type.type.properties, Academic advisees
Physicist, base.descriptive_names.names.descriptive_name, m.010flyfj
Edward Victor Appleton, people.person.profession, Physicist
Electric charge, rdf-schema#domain, Subatomic particle
Academic, type.type.expected_by, Academics in this field
Physics, type.domain.owners, Owners of particlephysics domain
Electrons are the lightest charged particles in existence., base.kwebbase.kwsentence.kwtopic, Electron
University of Cambridge, location.location.containedby, United Kingdom
Physics, freebase.domain_profile.users, ifrucc
Academic, type.type.expected_by, Academic advisors
John Sealy Townsend, people.person.profession, Scientist
Subatomic particle, common.topic.notable_for, g.1yl5n6l7n
William Lawrence Bragg, common.topic.notable_types, Academic
Magnetic moment, type.property.expected_type, Magnetic moment
George Paget Thomson, education.academic.advisors, John William Strutt
Physics, freebase.domain_profile.expert_group, Particle Physics Experts
Joseph John Thomson, base.kwebbase.kwtopic.connections_from, joseph john thomson taught paul langevin
Physicist, base.descriptive_names.names.descriptive_name, m.01066smw
Joseph John Thomson, book.author.works_written, The electron in chemistry
Charles Glover Barkla, people.person.education, m.02kq0my
G. I. Taylor, people.person.profession, Physicist
Edinburgh, common.image.appears_in_topic_gallery, Edinburgh
Topic, freebase.type_profile.kind, Meta
Physics, freebase.domain_profile.featured_views, m.0b66gv6
Physics, freebase.domain_profile.featured_views, m.0935b4b
H. Stanley Allen, common.topic.notable_types, Academic
1958 International Congress of Mathematicians, time.event.locations, Edinburgh
Joseph John Thomson, people.person.education, m.0n1hw_h
Edward Routh, people.person.nationality, United Kingdom
Mass, type.property.expected_type, Subatomic mass
Barkla, symbols.namesake.named_after, Charles Glover Barkla
m.03p7gvx, education.education.institution, Trinity College, Cambridge
Physics, freebase.domain_profile.users, deshonest
Joseph John Thomson, education.academic.advisees, Max Born
Academic, type.type.expected_by, Academics
This is the process  by which atoms form molecules., base.kwebbase.kwsentence.kwtopic, Electron
Antiparticle, type.property.expected_type, Particle-Antiparticle
Academic, type.type.properties, Departments
X-ray, base.nobelprizes.nobel_subject_area.nobel_awards, m.063r14_
Theoretical Physicist, common.topic.notable_types, Profession
Max Born, people.person.profession, Physicist
m.02wpwkg, education.education.institution, Trinity College, Cambridge
Generation, type.property.reverse_property, Particles
Barkla, common.topic.notable_for, g.125gbh382
John Zeleny, education.academic.advisors, Joseph John Thomson
Electron, base.nobelprizes.nobel_subject_area.nobel_awards, m.06445ds
m.02kq3m_, business.employment_tenure.person, Charles Glover Barkla
Magnetic moment, rdf-schema#domain, Subatomic particle
Generation, type.property.schema, Subatomic particle
Ernest Rutherford, education.academic.advisees, Niels Henrik David Bohr
Joseph John Thomson, education.academic.advisees, Charles Thomson Rees Wilson
Subatomic particle, freebase.type_profile.strict_included_types, Topic
G. I. Taylor, education.academic.advisors, Joseph John Thomson
m.0b6rxy_, common.webpage.topic, Edinburgh
Physics, freebase.domain_profile.users, jayssaorajay
G. I. Taylor, common.topic.notable_types, Academic
Generation, type.property.expected_type, Subatomic particle generation
H. Stanley Allen, common.topic.notable_for, g.1257lwndn
Topic, type.type.properties, Subjects
Subatomic particle, common.topic.article, m.08scd_h
Electron, base.skosbase.vocabulary_equivalent_topic.equivalent_concept, Electrons
Joseph John Thomson, education.academic.advisees, William Henry Bragg
Ernest Rutherford, education.academic.advisors, Joseph John Thomson
William Lawrence Bragg, education.academic.advisors, Joseph John Thomson
Physicist, base.schemastaging.context_name.pronunciation, g.125_nmg0m
Joseph John Thomson, book.author.works_written, An introduction to chemical energetics
Subatomic particle, type.type.properties, Mass
Joseph John Thomson, book.author.works_written, The Corpuscular Theory of Matter
Charles Glover Barkla, common.topic.notable_for, g.125804d5q
Their charge is negative., base.kwebbase.kwsentence.kwtopic, Electron
Physicist, base.descriptive_names.names.descriptive_name, m.010flyh5
m.063r14_, base.nobelprizes.nobel_honor.subject_area, X-ray
Electron, base.schemastaging.context_name.official_name, Electron
Generation, owl#inverseOf, Particles
Edinburgh, common.topic.webpage, m.09x2_29
Charles Thomson Rees Wilson, education.academic.advisors, Joseph John Thomson
Subatomic particle, type.type.properties, Interactions
Max Born, common.topic.notable_types, Academic
m.0n1l7gj, education.education.student, Charles Glover Barkla
Physicist, common.topic.image, GodfreyKneller-IsaacNewton-1689
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, This was the first step towards Einstein's famous law of the equivalence of mass and energy published a decade later.
Charles Glover Barkla, common.topic.notable_types, Academic
Interactions, type.property.reverse_property, Particles
Electron, base.schemastaging.context_name.pronunciation, g.125_s69nt
Physics, freebase.domain_profile.users, barres
Joseph John Thomson, education.academic.advisees, Ernest Rutherford
Physicist, people.profession.specializations, Optical Physicist
Particle type?, community.discussion_thread.topic, Electron
Person, rdf-schema#range, Academic
electron.noun.01, base.wordnet.synset.equivalent_topic, Electron
Electron, physics.particle.antiparticle, m.08sdrfn
George Paget Thomson, people.person.nationality, United Kingdom
Charles Glover Barkla, common.image.size, m.029j0w3
Particles, rdf-schema#domain, Subatomic particle generation
Topic, type.type.properties, Article
Topic, freebase.type_profile.published, Published
Joseph John Thomson, education.academic.advisees, William Lawrence Bragg
Lepton, physics.particle_family.particles, Electron
m.02kq0c3, education.education.institution, University of Cambridge
H. Stanley Allen, common.topic.article, m.03d11y0
Joseph John Thomson, education.academic.advisees, Niels Henrik David Bohr
Edward Victor Appleton, common.topic.notable_types, Academic
Antiparticle, rdf-schema#range, Particle-Antiparticle
Physics, freebase.domain_profile.users, leif_nabil
Ernest Rutherford, education.academic.advisees, Edward Victor Appleton
Mass, rdf-schema#range, Subatomic mass
William Henry Bragg, education.academic.advisees, William Lawrence Bragg
They are stable because they cannot decay into smaller components., base.kwebbase.kwsentence.kwtopic, Electron
H. Stanley Allen, education.academic.advisors, Joseph John Thomson
Joseph John Thomson, education.academic.advisees, John Sealy Townsend
m.07nfhgn, base.ontologies.ontology_instance_mapping.freebase_topic, Physicist
Electron, physics.particle.mass, m.0gbw6m0
Physics, type.domain.types, Fundamental interaction
Joseph John Thomson, common.topic.article, m.0j698
Physics, freebase.domain_profile.users, forumcash
Max Born, education.academic.advisors, Joseph John Thomson
joseph john thomson taught william henry bragg, base.kwebbase.kwconnection.other, William Henry Bragg
Academic, freebase.type_profile.strict_included_types, Agent
William Henry Bragg, people.person.profession, Physicist
m.03lg_6s, people.place_lived.person, Charles Glover Barkla
Edward Routh, common.topic.notable_types, Academic
Charles Glover Barkla, award.award_winner.awards_won, m.0gv4hw3
Interactions, owl#inverseOf, Particles
Joseph John Thomson, people.person.children, Joan Paget Thomson
GodfreyKneller-IsaacNewton-1689, common.image.appears_in_topic_gallery, Mathematician
Particles, type.property.schema, Subatomic particle family
Charles Thomson Rees Wilson, people.person.gender, Male
William Henry Bragg, common.topic.notable_types, Academic
Physics, freebase.domain_profile.users, fabien_esperance
Physics, freebase.domain_profile.users, apollo40
Physicist, base.descriptive_names.names.descriptive_name, m.011r1b60
Niels Henrik David Bohr, common.topic.notable_types, Academic
Ronald McNair, fictional_universe.fictional_character.occupation, Physicist
m.0gv4hw3, award.award_honor.award_winner, Charles Glover Barkla
William Henry Bragg, education.academic.advisors, Joseph John Thomson
Charles Thomson Rees Wilson, people.deceased_person.place_of_death, Edinburgh
Physics, freebase.domain_profile.equivalent_topic, Particle physics
Joseph John Thomson, education.academic.advisees, Francis William Aston
Physicist, people.profession.part_of_professional_field, Physics
joseph john thomson work related to albert einstein, base.kwebbase.kwconnection.subject, Joseph John Thomson
m.0646h0k, base.nobelprizes.nobel_honor.subject_area, Electron
Physicist, people.profession.specialization_of, Scientist
Particle, rdf-schema#domain, Particle-Antiparticle
Electron, base.nobelprizes.nobel_subject_area.nobel_awards, m.0646h0k
Person, freebase.type_profile.published, Published
Edinburgh, common.topic.subject_of, Line Digital Ltd
Physicist, common.topic.article, m.05sp4
m.08sdrfn, physics.particle_antiparticle.particle, Electron
Mass, rdf-schema#domain, Subatomic particle
Joseph John Thomson, people.person.education, m.02kq0w4
joseph john thomson taught william henry bragg, base.kwebbase.kwconnection.sentence, He taught Langevin, Bragg and Oppenheimer.
Physicist, common.topic.webpage, m.09ypqb8
Magnetic moment, rdf-schema#range, Magnetic moment
Lewis Fry Richardson, common.topic.notable_types, Academic
Charles Thomson Rees Wilson, common.topic.notable_types, Academic
John Zeleny, common.topic.notable_types, Academic
H. Stanley Allen, people.person.education, m.045_vwm
Theoretical Physicist, people.profession.specialization_of, Physicist
m.063r14_, base.nobelprizes.nobel_honor.nobel_prize_winner, Charles Glover Barkla
Joseph John Thomson, book.author.works_written, Properties of Matter
H. Stanley Allen, people.person.education, m.064yp6g
John Sealy Townsend, common.topic.notable_types, Academic
m.0646h0k, base.nobelprizes.nobel_honor.subject_area, Electron
Academic, freebase.type_profile.strict_included_types, Topic
Charles Glover Barkla, common.topic.image, Charles Glover Barkla
Charles Glover Barkla 01, common.image.size, m.0g_f7bh
m.02wpwkg, education.education.student, Joseph John Thomson
Subatomic particle, type.type.properties, Spin
Physics, freebase.domain_profile.users, koosker
Particles, rdf-schema#domain, Fundamental interaction
Edward Routh, education.academic.advisees, John William Strutt
GodfreyKneller-IsaacNewton-1689, common.image.appears_in_topic_gallery, Physicist
Niels Henrik David Bohr, people.person.profession, Scientist
Education, freebase.domain_profile.category, Commons
Charles Glover Barkla, people.person.education, m.0n1l7gj
Charles Glover Barkla, people.person.employment_history, m.02kq434
Joseph John Thomson, book.author.works_written, Elements of the mathematical theory of electricity and magnetism
Topic, type.type.properties, Image
Physics, people.professional_field.professions_in_this_field, Physicist
Heriot-Watt University, organization.organization.geographic_scope, United Kingdom
Joseph John Thomson, education.academic.advisors, John William Strutt
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, Thomson then developed experiments in which the rays were deflected by both magnetic and electrical fields.
Edward Routh, people.person.profession, Mathematician
m.02kq0c3, education.education.student, Charles Glover Barkla
Particle, type.property.reverse_property, Antiparticle
Physicist, common.topic.image, Albert Einstein 1947
Alfred Young, people.person.profession, Mathematician
Topic, type.type.domain, Common
Subatomic particle, type.type.expected_by, Particles
m.02kq0my, education.education.student, Charles Glover Barkla
m.03p7gvx, education.education.student, H. Stanley Allen
m.02xlkbb, award.award_honor.award, Nobel Prize in Physics
Academic, freebase.type_profile.kind, Description
Widnes, common.topic.notable_for, g.1254y3fnz
Joseph John Thomson, common.topic.image, Jj-thomson2.jpg
Physics, type.domain.types, Subatomic particle
Subatomic particle, common.topic.image, A Helium atom,having a radius of 31 picometres.
Electron, physics.particle.spin, 0.5
Physics, type.domain.types, Particle-Antiparticle
Subatomic particle, common.topic.notable_types, Literature Subject
Physics, freebase.domain_profile.users, smithcomputer
Charles Glover Barkla, people.person.education, m.02kq0c3
m.02xlk3w, award.award_honor.award, Nobel Prize in Physics
The Journal, book.newspaper.circulation_areas, Edinburgh
H. Stanley Allen, people.person.education, m.03p7gvx
Topic, type.type.properties, Also known as
Edinburgh, common.topic.notable_for, g.12594thws
Physics, freebase.domain_profile.users, hskim105
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, He taught Langevin, Bragg and Oppenheimer.
Edinburgh, common.topic.webpage, m.03lzgkm
m.02kq434, business.employment_tenure.person, Charles Glover Barkla
Lewis Fry Richardson, people.person.profession, Mathematician
Electron, base.kwebbase.kwtopic.has_sentences, If the outer shell is not full, the atom can take electrons from other atoms.
Edinburgh, common.topic.webpage, m.0b6rxy_
Physics, type.domain.types, Subatomic mass
Joseph John Thomson, base.kwebbase.kwtopic.has_sentences, Thomson was awarded the 1906 Nobel Prize in Physics, and in 1908 he was knighted for his scientific achievements.
Physicist, base.descriptive_names.names.descriptive_name, m.011r1b6w
m.02kq0w4, education.education.student, Joseph John Thomson
University of Edinburgh, location.location.containedby, United Kingdom
Particle, owl#inverseOf, Antiparticle
Generation, rdf-schema#domain, Subatomic particle
Barkla, common.topic.image, Barkla
Particles, type.property.schema, Subatomic particle generation
Joseph John Thomson, base.kwebbase.kwtopic.connections_from, joseph john thomson taught william henry bragg
Joseph John Thomson, education.academic.advisees, G. I. Taylor
m.064yp6g, education.education.institution, King's College London
Particles, type.property.master_property, Interactions
Physicist, base.lightweight.profession.specialization_of, Physicists and Astronomers
Charles Glover Barkla, people.person.education, m.02wm_7d
Literature Subject, freebase.type_profile.published, Published
They group in clouds around the nucleus of an atom., base.kwebbase.kwsentence.kwtopic, Electron
Charles Glover Barkla, people.person.employment_history, m.02kq3m_
m.02kq0my, education.education.institution, University of Liverpool
Joseph John Thomson, people.person.nationality, United Kingdom
joseph john thomson work related to albert einstein, base.kwebbase.kwconnection.sentence, This was the first step towards Einstein's famous law of the equivalence of mass and energy published a decade later.
Academic, type.type.expected_by, Academic advisees
Physics, freebase.domain_profile.featured_views, Fundamental Interaction
Subjects, owl#inverseOf, Subject of
Widnes, location.location.people_born_here, Charles Glover Barkla
Charles Glover Barkla, education.academic.advisors, Joseph John Thomson
Family, type.property.expected_type, Subatomic particle family
University of Edinburgh, business.employer.employees, m.02kq3m_
Joseph John Thomson, people.person.profession, Physicist
Electron, base.kwebbase.kwtopic.has_sentences, Electrons are the lightest charged particles in existence.
Barkla, common.topic.article, m.04c8sz
Particle, rdf-schema#range, Subatomic particle
Charles Glover Barkla, common.image.appears_in_topic_gallery, Charles Glover Barkla
Physics, common.topic.article, m.093362b
Subatomic particle, type.type.properties, Electric charge
Topic, type.type.properties, Notable for
Joseph John Thomson, education.academic.advisees, Owen Willans Richardson
They have four properties:  charge, mass, spin and the alignment which they assume in a magnetic field., base.kwebbase.kwsentence.kwtopic, Electron
m.045_vwm, education.education.student, H. Stanley Allen
Charles Glover Barkla, people.person.places_lived, m.03lg_6s
Physicist, base.ontologies.ontology_instance.equivalent_instances, m.07nfhgn
Family, rdf-schema#range, Subatomic particle family
Joseph John Thomson, people.person.children, George Paget Thomson
Physicist, people.profession.specializations, Nuclear Physicist
Particle physics, education.field_of_study.subdiscipline_of, Physics
Particles, type.property.master_property, Generation
Electric charge, type.property.schema, Subatomic particle
NASA, base.yupgrade.user.topics, Electron
Electron, base.kwebbase.kwtopic.has_sentences, The electron was discovered by British physicist J.J. Thomson.
Physics, freebase.domain_profile.featured_views, Particle
Academic, freebase.type_profile.published, Published
Mathematician, common.topic.image, GodfreyKneller-IsaacNewton-1689
Topic, type.type.properties, Description
Niels Henrik David Bohr, education.academic.advisors, Ernest Rutherford
Joseph John Thomson, people.person.education, m.03lsdr7
Education, type.domain.types, Academic
Electron, physics.particle.electric_charge, -1.0
William Lawrence Bragg, education.academic.advisors, William Henry Bragg
Profession, freebase.type_profile.published, Published
William Lawrence Bragg, people.person.profession, Physicist
G. I. Taylor, people.person.profession, Mathematician
Charles Glover Barkla, people.deceased_person.place_of_death, Edinburgh
Charles Glover Barkla, common.topic.image, Charles Glover Barkla 01
Joseph John Thomson, education.academic.advisees, Edward Victor Appleton
Joseph John Thomson, base.kwebbase.kwtopic.connections_from, joseph john thomson taught julius robert oppenheimer
Also known as, rdf-schema#domain, Topic
Jj-thomson2.jpg, common.image.appears_in_topic_gallery, Joseph John Thomson
m.064yp6g, education.education.student, H. Stanley Allen
Physics, freebase.domain_profile.users, grindaizer
Physics, type.domain.types, Subatomic particle family
Academic, freebase.type_hints.included_types, Topic
Electron, base.ontologies.ontology_instance.equivalent_instances, m.07ndzwd
Physics, freebase.domain_profile.category, Science & Technology
Edward Victor Appleton, education.academic.advisors, Joseph John Thomson
Physicist, people.profession.specializations, Medical Physicist
Antiparticle, type.property.master_property, Particle
m.09ypqb8, common.webpage.topic, Physicist
Academic, type.type.domain, Education
Ernest Rutherford, common.topic.notable_types, Academic
Widnes, common.topic.article, m.01t8cg

Answer: Electron