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The following atoms are all variations of the element carbon: 12C, 13C, and 14C due to differing numbers of neutrons. What are these variations called?

a. Molecules
b. Isotopes
c. Polymers
d. Isomers

User Levi W
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1 Answer

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12C, 13C,and 14C are called isotopes because they are all the  same element 
User Tom Burrows
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