Question

Use molecular orbital theory to explain why the be2 molecule does not exist

Answer 1

Answer:

// He2 molecule does not exist//

Explanation:

the electronic configuration of the Helium atom is 1s2. is Helium atom contains two electrons therefore in Helium molecule there would be four electrons. this election will be accommodated in Sigma 1s and sigma*1s molecular orbitals leading to the electronic configuration :

(sigma1s)^2(sigma*1s)^2

the bond order of He2 is 1/2(2-2)=0

He2 molecule is therefore unstable and does not exist.

Answer 2

Answer:A molecule exist or not we can find it by calculating the bond order. Since the bond order of Be2 is 0 thus Be2 does not exist..

Explanation:Open the attachment ..