Question

MO diagrams.

Answer 1

I don't know how to explain this uhhh

so in molecular orbital (MO) diagrams, for elements in the second row
Boron, Carbon, Nitrogen have a different diagram whereas Oxygen, Fluorine and Neon have a different one

Answer 2

You can take a look at the MO for C2

you'll see that the sigma bond for 2p is higher than the pi bond for 2p

Answer 3

The ones with the asterixis are the antibonding molecular orbitals

Answer 4

The MO for O2

you can notice that the sigma bond for 2p is lower than the pi bond for 2p

Answer 5

This is the region we're talking about

for B, C, and N it's going to be diagram A

for O, F, Ne it's going to be diagram B