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2 votes
Which of these is not part of an atom?

A. proton
B. isotope
C.nucleus
D. electron

User Rod
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2 Answers

7 votes

The isotope isn't a part of the atom

User Davemyron
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1 vote

Answer:

B. Isotope, because an isotope is just two atoms that have the same atomic number

User Perdi Estaquel
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