There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement is true? (1 point)

Question

O. Their number of protons differ.
• Their atomic masses differ.
• They are radioactive, like all isotopes
•. The number of neutrons are the same

Answer 1

The true statement is: Their atomic masses differ.

Here’s why the other statements are not true:

1. Their number of protons differ: This is incorrect because all isotopes of neon have the same number of protons, which is 10.
2. They are radioactive, like all isotopes: This is incorrect as all three isotopes (neon-20, neon-21, and neon-22) are stable, not radioactive.
3. The number of neutrons are the same: This is incorrect because each isotope has a different number of neutrons (10 for neon-20, 11 for neon-21, and 12 for neon-22).

Thus, the correct answer is that their atomic masses differ due to the variation in the number of neutrons.