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

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 isotopes of carbon. The atomic number of carbon is 6, so they both have 6 protons and thus the same atomic number. The mass number is the sum of protons and neutrons. Carbon - 12 has 6 protons and 6 neutrons (mass number = 12), while carbon - 13 has 6 protons and 7 neutrons (mass number = 13).
Answer:
They both have the same atomic number.