Each of the noble gases has a completely filled p subshell except for which one?
A) Xenon
B) Neon
C) Radon
D) Argon
E) Helium

Name: Each of the noble gases has a completely filled p subshell except for which one? A) Xenon B) Neon C) Radon D) Argon E) Helium
Brand: Quizplus
Rating: 4.9 (35 reviews)

Question

Quizplus · Accepted Answer

Helium is the exception because it has a completely filled s subshell (1s^2) but does not have a p subshell, as it is in the 1s orbital, which is before the start of the p block elements in the periodic table.

Each of the Noble Gases Has a Completely Filled P