H2 molecule is more stable than Li2 molecule, because
H2 molecule is more stable than Li2 molecule, because

1.in H2 molecule 15 molecular orbitals are shielded by electrons are shielded by electrons.

2.In H2 bond order is one.

3.In Li2 molecule 15 molecular orbitals are shielded by electrons.

4.In Li2 molecular 25 molecular orbitals are shielded by electrons.

 

Correct Answer: 4. In Li2 molecular 25 molecular orbitals are shielded by electrons.

Explanation: H2 molecule is more stable than Li2 molecule, because in Li2 molecular 25 molecular orbitals are shielded by electrons.