Atom a consists of 10 protons, 12 neutrons, and 10 electrons. atom b consists of 10 protons, 10 neutrons, and 12 electrons. (5 points) the atoms are isotopes of each other. the atoms are not isotopes of each other.

The atoms are isotopes of each other

Explanation:

- Two atoms are said to be isotopes of each other if they have same atomic number Z (which corresponds to the number of protons) but different mass number A (which corresponds to the sum of protons and neutrons in the nucleus).

For atom A, we have:

Z = 10 (10 protons)

A = 10+12 = 22 (10 protons + 12 neutrons)

For atom B, we have:

Z = 10 (10 protons)

A = 10+10 = 20 (10 protons + 10 neutrons)

The two atoms have same atomic number Z but different mass number A, so they are isotopes of each other.