which of the following elements has the smallest ionization energy? choose 1 answer: a nitrogen b arsenic c…

Brief Explanations:

Ionization energy decreases down a group in the periodic table. Nitrogen is in period 2, arsenic in period 4 and bismuth in period 6. As we move down the group, the out - most electrons are farther from the nucleus and are easier to remove, thus having lower ionization energy. Bismuth is the furthest down among the three elements.

Answer:

C. bismuth