Question

why do molecules posess definte shapes
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Answer 1

Answer:

(i) All bonded atoms occupy such positions (around the central atom) in space where the repulsive forces between them are minimum. (ii) The molecule attains minimum enthalpy and maximum stability.So molecule has a definite shape or geometry. ... The central atom (Be) has only two bond pairs and no lone pair.

Answer 2

(i) All bonded atoms occupy such positions (around the central atom) in space where the repulsive forces between them are minimum.

(ii) The molecule attains minimum enthalpy and maximum stability.So molecule has a definite shape or geometry. The central atom (Be) has only two bond pairs and no lone pair.