Question

30. Why is helium considered to be a noble gas
though it has only two valence electrons unlike
the other noble gases?​

Answer 1

Answer:

follow me plz plzzz

Explanation:

• Noble gases are the least reactive of all known elements.
• That's because with eight valence electrons, their outer energy levels are full.
• But helium also has a full outer energy level, because its only energy level (energy level 1) can hold a maximum of two electrons.

Answer 2

Answer:

Helium is considered as a noble gas.

Explanation:

Because it's valency is 0 i. e. it does not lose or gain any electron.