Question

Which of the following statements are true of carbon-14?

1. Its mass will be different from that of an atom of carbon-12.
II. It will contain a different number of protons than an atom of carbon-12.
III. It contains more neutrons than carbon-12.
ILL

Answer 1

Carbon-14 is an isotope of carbon with a different mass and more neutrons than carbon-12.

Step-by-step explanation:

Carbon-14 is an isotope of carbon that has 2 extra neutrons compared to carbon-12, which means it contains a total of 6 protons, 8 neutrons, and 6 electrons. The mass of carbon-14 is different from carbon-12 due to the presence of these extra neutrons.

Therefore, Statement I is true; the mass of carbon-14 is different from that of an atom of carbon-12.

However, carbon-14 and carbon-12 have the same number of protons and electrons, which is 6. So, Statement II is false; carbon-14 does not contain a different number of protons than an atom of carbon-12.

On the other hand, carbon-14 has 2 more neutrons than carbon-12, making Statement III true; carbon-14 contains more neutrons than carbon-12.

Learn more about Carbon-14 isotope