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Q.

Which of the following element is not an isotope of carbon?

 A.

Carbon-14

 B.

Carbon-13

 C.

Carbon-16

 D.

Carbon-12

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Solution:
Option(C) is correct

Carbon-16 is not an isotope of carbon. Carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.

The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7 and 8 respectively.


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