Question

storyline 1 exam
with the exception of he, how many valence electrons do noble gases have?
6
8
3
4

Explanation:

Noble gases (except He) have a full outer electron shell. The outer shell (valence shell) for these noble gases (like Ne, Ar, etc.) has 8 electrons. Helium is an exception as it has only 2 electrons in its outer (and only) shell.

Answer:

8