Answer to Question #151533 in General Chemistry for Jenny

Question

The nonmetals helium, neon, and argon and the meadows copper, silver, and gold are among only a few elements that are found in nature in their pure forms. What can you infer about the chemical reactivity of these elements?

Answer 1

Nonmetal reactivity decreases down a group because the nucleus' ability to gain more valence electrons weakens due to more nuclear shielding.