Question

Given the following table, which statement is true about atoms A and B?

Atom A has 10 protons and 10 neutrons
Atom B has 10 protons and 11 neutrons

Answer 1

A and B are isotopes of the same element. Explanation: Isotopes correspond to atoms of the same element with different mass numbers (A), that is to say they differ in the amount of neutrons in the nucleus. In the case of compound A it has 10 neutrons, and B has 11.