[DOC] [TLE] Chem4Kids.com: Atoms: Isotopes [PAR] They are just a little different from every other atom of the same element. For 
example, there are a ... As you learn more about chemistry, you will probably 
hear about carbon-14. Carbon-14 ... If you are an atom with an extra electron, it's 
no big deal. Electrons don't have much of a mass when compared to a neutron or 
proton. [DOC] [TLE] Dalton's Atomic Theory - Chemistry - Tutorvista.com [PAR] Chemical combination of two or more different atoms of different elements are ... 
of atoms and each atom has its own characteristic weight, so the compounds ... 
one atom of oxygen and in carbon dioxide one atom of carbon combined with two 
... Atoms of the same or different types have a strong ability to combine together 
to... [DOC] [TLE] Relative atomic mass - Wikipedia [PAR] Thus, two samples of a chemical element which is naturally found as being 
composed of more than one isotope, collected from two substantially different... [DOC] [TLE] Atomic theory: atoms, elements, nucleus - Chem1 [PAR] May 13, 2016 ... The idea of the atom  at one time a theory, but now directly ... ("magnesium is 
one of the elements having two electrons in its outer shell"). .... Most of the atoms 
in the universe still consist of hydrogen, with helium being a distant second. ..... 
Two nuclides having the same atomic number but different mass... [DOC] [TLE] Isotope | Define Isotope at Dictionary.com [PAR] Isotopes of a single element possess almost identical properties. ... different 
numbers of neutrons in the nucleus, or different atomic weights. ... Deuterium is 
an isotope of hydrogen containing a proton and neutron in its ... one of two or 
more atoms with the same atomic number that contain different numbers of 
neutrons. [DOC] [TLE] Molecules A molecule is an aggregate of two or more atoms held ... [PAR] When a molecule is formed the atoms of the same element or ... is a molecule 
that made up of two different kinds of atoms, one C atom and ... Thus its mass is. [DOC] [TLE] ATOMS AND ISOTOPES [PAR] The mass of the atom, its atomic mass, depends upon both the number of ... 
Isotopes are atoms with different atomic masses which have the same atomic 
number. ... For example, the element hydrogen has atoms that have one proton in 
the nucleus. ... in the nucleus), but an atomic mass of two (one proton plus one 
neutron). [DOC] [TLE] CHEMISTRY I: ATOMS AND MOLECULES [PAR] Atoms are the smallest particle into which an element can be divided. ... Protons 
have a charge of +1, and a mass of approximately 1 atomic mass unit (amu). ... 
Isotopes differ from each other in the number of neutrons, not in the number of 
protons. ... a maximum of two electrons in its s orbital, plus one electron in its p 
orbital. [DOC] [TLE] Elements and Atoms - Kimball's Biology Pages [PAR] Neutrons have the same weight as protons but no electrical charge. The helium 
atom has two electrons so that, once again, the atom as a whole is neutral. ... 
Each element has a unique atomic number and its atoms have one more proton 
.... Atoms of the same element that differ in their atomic weight are called isotopes
. [DOC] [TLE] Are ions atoms of the same element with different numbers? - Quora [PAR] Your question is ambiguous. Do you mean, "Are ions of an element the same 
element but with ... Can we call one atom and one ion of the same element 
having different ... What is the difference between atomic weight and atomic 
number? ... so a positive ion has more protons in the nucleus than it has 
electrons in its cloud,... [DOC] [TLE] Atomic number, atomic mass, and isotopes | Elements and atoms ... [PAR] In this article, we'll look in more detail at the subatomic particles that different 
atoms ... Forms of the same atom that differ only in their number of neutrons are 
called isotopes. ... Carbon-14 contains six protons, eight neutrons, and six 
electrons; its mass

Question: It's 1 or 2 or more atoms of the same element that differ in atomic weight
Answer: an isotope