Can someone help me on number 7

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asked Jul 17, 2019 135k views

5 votes

Can someone help me on number 7

Chemistry
high-school

Beerbajay asked

by Beerbajay

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1 Answer

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The answer is "C" because all isotopes have a different mass number. The number of protons does not change. The mass of electrons is negligible. Thus, the number of neutrons changes.

Saolof answered Jul 21, 2019

by Saolof

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