Question

Noble gases all have _____ electrons in their valence shells.
A. 1
B. 4
C. 7
D. 8

Answer 1

The outermost shell of any noble gas is completely filled. And because of this, we can say that they have 8 electrons in their outer shells, with the exception of helium, which has 2 electrons in its outer shell.

Answer 2

its D. 8 electrons in the outer shell

Answer 3

Except Helium all noble gases have 8 electrons in their outermost shell