Phosphorus
Consider the element phosphorus,which has an atomic mass of 30,and answer the following question(s).
-Phosphorus has ____ electron vacancies.
A) 1
B) 2
C) 3
D) 5
E) 8

Question

Quizplus · Accepted Answer

Phosphorus has 15 electrons in total (based on its atomic number), and its electron configuration is 1s2 2s2 2p6 3s2 3p3. This means it has three electrons in its outermost energy level (3p), and these are the electrons that could potentially participate in chemical reactions, making them the electron vacancies referred to in the question. Therefore, the best choice is C) 3.

Phosphorus Consider the Element Phosphorus,which Has an Atomic Mass of 30,and