Explain the structure of water molecule ?

Explanation

Electronic configuration of `O:1s^(2)2s^(2)2p^(4)`
Valence orbital representation.

1. When `2s^(2)` orbital hybridised with `2p_(x),2p_(y)` and `2p_(z)` forms the following `sp^(3)` hybridisation structure.
2. In `2s^(2)` and `2p_(x)^(2)`, the electrons are paired up hence they are not involved in bond formation called loan paired of electron (L.P.)
3. When `sp^(3)` hybridised O combines with 2 hydrogen atom forms Bond structrue water.