Chemistry, asked by samhi, 1 year ago

why He2 does not form?

Answers

Answered by iamask
1
Helium is a noble gas. It has a fully filled valence shell.
Answered by Abhishek474241
1
Hey friend _____------_______
Here is your ans _-_-_--_-

He2 molecule does not exists



Ans: Electronic configuration of He atom – 1s2

According Linear combination of atomic orbitals the He2 molecule electronic configuration is – σ1s2 σ*1s2

Thus there are equal number of electrons present in bondig molecular orbitals and anti-bonding molecular orbitals.

Bond order in He2 molecule = ½[number of electrons in bonding orbital- number of electrons in anti bonding orbital]

= ½[2-2]

= ½[0]

= 0

Thus there are Zero (0) number of bonds present between He atoms in He2molecule.
as a result
Hence,Thus there is no existence of He2(diatomic Helium)molecule

Hope it help-_-_-_-✌️✌️✌️✌️

Abhishek474241: mark my question dear
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