Question

The valency of noble gases, in general is

• A. Zero
• B. Two
• C. One
• D. Eight

Answer 1

The correct option is A Zero

Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are the elements of group 18. The noble gases have a valency of zero since the valence shell is saturated with 8 electrons (except helium which has two electrons). They rarely react with other elements and are considered to have a stable configuration.