Question

Which of the following elements has the same valence electron configuration as phosphorus (p)

Answer 1

When it comes to similarities of elements, the best solution is to look at the periodic table. Aside from arranging the elements according to the least to greatest atomic numbers, the columns called groups, have the same electronic configuration in their valence shell. They only differ in the energy levels. Therefore, all elements at the same period of Phosphorus have the same electronic configuration. The answers could be Nitrogen, Astatine, Antimony and Bismuth.