Phosphorus
Consider the element phosphorus,which has an atomic mass of 30,and answer the following question(s).
-How many electrons are in the innermost electron shell of a phosphorus atom?
A) 1
B) 2
C) 3
D) 5
E) 8

Question

Quizplus · Accepted Answer

The innermost electron shell of an atom can hold a maximum of 2 electrons. For phosphorus, which has an atomic number of 15, the first shell (K shell) will have 2 electrons.

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