We’re being asked which **species** is the **most stable**. For this, we need to determine the bond order for each species. The ** bond order** tells us the stability of a bond:

*Step 1:* Calculate the total number of valence electrons present.

*Step 2:* Draw the molecular orbital diagram.

*Step 3:* Calculate the bond order of the molecule/ion. Recall that the formula for ** bond order** is:

$\overline{){\mathbf{Bond}}{\mathbf{}}{\mathbf{Order}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbf{2}}{\mathbf{[}}{\mathbf{\#}}{\mathbf{}}{\mathbf{of}}{\mathbf{}}{{\mathbf{e}}}^{{\mathbf{-}}}{\mathbf{}}{\mathbf{in}}{\mathbf{}}{\mathbf{MO}}{\mathbf{-}}{\mathbf{\#}}{\mathbf{}}{\mathbf{of}}{\mathbf{}}{{\mathbf{e}}}^{{\mathbf{-}}}{\mathbf{}}{\mathbf{in}}{\mathbf{}}{\mathbf{antibonding}}{\mathbf{}}{\mathbf{MO}}{\mathbf{]}}}$

Use molecular orbital theory to complete this table BY FILLING FLANKS, 0,1,2,3, or 4

NF = (δ1s) ___(δ1s*) ___(δ2s) ___(δ2s*) ___(π2p)___ (δ2p) ___(π2p*) Bonding order=

NF^{+} = (δ1s) ___(δ1s*) ___(δ2s) ___(δ2s*) ___(π2p)___ (δ2p) ___(π2p*) Bonding order=

NF^{-} = (δ1s) ___(δ1s*) ___(δ2s) ___(δ2s*) ___(π2p)___ (δ2p) ___(π2p*) Bonding order=

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Bond Order concept. If you need more Bond Order practice, you can also practice Bond Order practice problems.