Question

Which noble gas has less than 8 electrons in the valence shell of its atom what is this number?

Answer 1

The noble gases (historically also the inert gases; sometimes referred to as aerogens[1]) make up a group of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). These elements are all nonmetals.

Answer 2

Helium Has less than 8 electrons in the valence shell of an atom. it has 2