Question

there are three stable forms of neon: neon - 20, neon - 21, and neon - 22. which statement is true? (1 point) their number of protons differ. the number of neutrons are the same. their atomic masses differ. they are radioactive, like all isotopes.

Explanation:

Isotopes of an element have the same number of protons (same atomic number) but different numbers of neutrons, resulting in different atomic masses. Neon - 20, neon - 21, and neon - 22 are stable isotopes of neon. They have the same number of protons and different numbers of neutrons and atomic masses.

Answer:

Their atomic masses differ.