Vll - Maths
Profit And Loss
Vl - Science
Effects of Rainfall - Droughts and Floods
Vlll - History
lX - Biology
Nutrients and Balanced Diet
X - Business Studies
Transactions in a Bank
Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back
We have received your request successfully.
Our counselor will call to confirm your booking.
Asked by Prasad
May 28, 2014
Member since Apr 24, 2013
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]
Thus there are Zero (0) number of bonds present between He atoms in He2 molecule.
Thus there is no existence of He2 (diatomic Helium)molecule.