Helium atom has 2 electrons in its valence shell but its valency is not 2 Explain...

Question

Helium atom has 2 electrons in its valence shell but its valency is not 2 Explain

Accepted Answer

Helium has 2 electrons in its outermost shell thereby completing duplet configuration Hence it has no valence shell left empty making its valency 0

NCERT Exemplar Solutions Class 9 Science Solutions for Structure of the Atom - Exercise in Chapter 4 - Structure of the Atom