Helium atom has 2 electrons in its valence shell but its valency is not 2.
A
True
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
False
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A True Helium atom with electronic configuration 1s2 has two valence electrons but since it is a noble gas, it does not form a chemical bond, its duplet is complete.Therefore, valency is zero.