There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement is true?(1 point) Responses Their atomic masses differ. Their atomic masses differ. Their number of protons differ. Their number of protons differ. They are radioactive, like all isotopes. They are radioactive, like all isotopes. The number of neutrons are the same.

Answer 1

The correct response is: Their atomic masses differ.

Neon-20, neon-21, and neon-22 are isotopes of neon, which means they have the same number of protons (which is 10 for all isotopes of neon) but differ in the number of neutrons. Consequently, their atomic masses are different as they have different totals of protons and neutrons. Specifically:

• Neon-20 has 10 protons and 10 neutrons.
• Neon-21 has 10 protons and 11 neutrons.
• Neon-22 has 10 protons and 12 neutrons.

Thus, while their number of protons is the same, their atomic masses and number of neutrons differ. Additionally, they are stable isotopes and not radioactive.