The numbers listed represent the number of electrons in the first,second,and third energy levels,respectively.On this basis,which of the following is an unstable or reactive atom?
A) 2
B) 2, 8
C) 2, 8, 1
D) 2, 8, 8

Question

Quizplus · Accepted Answer

An atom is considered unstable or reactive if its outermost energy level is not filled with the maximum number of electrons it can hold. Option C has only one electron in its outermost energy level, making it unstable and reactive.

The Numbers Listed Represent the Number of Electrons in the First,second,and