Question

Write the electronic configuration of li2 molecule

Answer 1

Li2 means it has 6 electrons,

So the electronic configuration will be

1s2 2s2 2p2

Answer 2

Explanation:

According to the molecular orbital theory, the general molecular orbital configuration will be,

$(\sigma_{1s}),(\sigma_{1s}^*),(\sigma_{2s}),(\sigma_{2s}^*),[(\pi_{2p_x})=(\pi_{2p_y})],(\sigma_{2p_z}),[(\pi_{2p_x}^*)=(\pi_{2p_y}^*)],(\sigma_{2p_z}^*)$

As there are 6 electrons present in $Li_2$, thus the molecular orbital configuration of

$(\sigma_{1s})^2,(\sigma_{1s}^*)^2,(\sigma_{2s})^2,(\sigma_{2s}^*)^0,(\sigma_{2p_z})^0,[(\pi_{2p_x})^0=(\pi_{2p_y})^0],[(\pi_{2p_x}^*)^0=(\pi_{2p_y}^*)^0],(\sigma_{2p_z}^*)^0$

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