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

Question

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

Answer 1

The correct statement is: Their atomic masses differ.

Explanation:

• Neon has three stable isotopes: neon-20, neon-21, and neon-22. Each of these isotopes has a different number of neutrons, which results in different atomic masses.
• The number of protons in all isotopes of neon is the same (10 protons), which means that the statement "Their number of protons differ" is false.
• The statement "They are radioactive, like all isotopes" is also false because neon-20, neon-21, and neon-22 are stable isotopes.
• Therefore, the only true statement is that their atomic masses differ.