Question

The elements that do not ordinarily form compounds are
a. elements in the carbon family.
b. metals.
c. halogens.
d. noble gases.

Answer 1

Noble gases, the have all 8 valence electrons so they do not have a need to bond

Answer 2

Noble gases to do usually form compounds because they are not reactive and also stable with a  full octet, which means they do not need anymore valence electrons in their outer shell.