Question

nonmetal reactivity decreases down the group because the more electron energy levels make it easier for atoms to attract (gain) electrons. the more electron energy levels make it difficult for atoms to attract (gain) electrons. rewatch submit

Explanation:

As non - metals tend to gain electrons, when moving down a group, the number of electron energy levels increases. This leads to an increase in atomic radius. The outermost electrons are farther from the nucleus, and the effective nuclear charge (the net positive charge attracting the electrons) experienced by the incoming electrons decreases. So, it becomes more difficult for the atoms to attract (gain) electrons, resulting in a decrease in non - metal reactivity.

Answer:

the more electron energy levels make it difficult for atoms to attract (gain) electrons.