Assertion: atom | /r/Synonym | electron
Facets:
Source sentences:
text: Overview of Atomic Structure Atoms are made up of particles called protons, neutrons, and electrons, which are responsible for the mass and charge of atoms.
text: The other two particles are the neutron and electron.
text: Atoms are composed of particles called protons, electrons and neutrons.
text: However, each atom contains even smaller particles called electrons .
text: Working with a Crookes tube, English physicist J. J. Thomson (1856-1940) hypothesized that the negatively charged particles Crookes had observed were being emitted by atoms, and in 1897, he gave a name to these particles: electrons.