Question

MO Diagram for Period 2 Elements from O to Ne Arrange the following in order of decreasing stability. A blank molecular orbital diagram (Figure 1) has been provided to help you. Rank the fluorine species from most to least stable. To rank items as equivalent, overlap them.

Answer 1

The molecular orbital diagram for F2 is as follows: 2p 2 2s 2s MO diagram of F2 The bond order is calculated using the following formula Bond orderNo. of bonding electrons-No. of Antibonding electrons) (10-8)

The molecular orbital diagram for F, is as follows: 2p 2p 2p 2p 2p 2s 2s 2s 2s MO diagram of F2 The bond order is calculated using the following formula: Bond order(No. of bonding electrons No. of Antibonding electrons) (0-9) -0.5

The molecular orbital diagram for F, is as follows: 2p 2p 2p IT 2p 2p 2s 2s 2s 2s MO diagram of F The bond order is calculated using the following formula: Bond order No. of bonding electrons- No. of Antibonding electrons) (10-7) The bond order calculated above indicates the number of bonds between F and F atoms. The bond order is directly proportional to the stability, therefore, based on this the stability order is as follows