Question #eb0d3

1 Answer
Jul 13, 2016

Answer:

The element is phosphorus, P.

Explanation:

The elements that have five valence electrons are in group 15/VA, which is the nitrogen family. The valence shell electron configuration is #"ns"^2"np"^3"#, where #"n"# is the highest energy level, and corresponds to the period (row) number. The element phosphorus, P, is in period 3 and group 15/VA and has a valence shell electron configuration of #"3s"^2"3p"^3"# for a total of five valence electrons.