There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement istrue?

Question

(1 point)
Their atomic masses differ.
Their number of protons differ.
They are radioactive, like all isotopes.
The number of neutrons are the same.

Answer 1

The correct statement is:

Their atomic masses differ.

Neon-20, neon-21, and neon-22 are isotopes of neon, and they differ in the number of neutrons, which results in different atomic masses. All three isotopes of neon have the same number of protons (10 protons), and they are stable, not radioactive. Therefore, the other statements are not true.