carbon-12 and carbon-13 are isotopes of carbon. which of the following statements is correct?\no they both…

carbon-12 and carbon-13 are isotopes of carbon. which of the following statements is correct?\no they both have seven protons in the nucleus.\no they both have the same mass number.\no they both have seven neutrons in the nucleus.\no they both have the same atomic number.

carbon-12 and carbon-13 are isotopes of carbon. which of the following statements is correct?\no they both have seven protons in the nucleus.\no they both have the same mass number.\no they both have seven neutrons in the nucleus.\no they both have the same atomic number.

Answer

Brief Explanations:

Isotopes of an element have the same number of protons, which defines the atomic number. Carbon - 12 and carbon - 13 are carbon isotopes, so they have the same atomic number. Proton number for carbon is 6, not 7. Mass numbers are different (12 and 13 respectively). Neutron numbers are different (6 for carbon - 12 and 7 for carbon - 13).

Answer:

They both have the same atomic number.