Question

What do you mean by proper symmetry

Answer 1

Explanation:

A symmetry operation is an action that leaves an object looking the same after it has been carried out. For example, if we take a molecule of water and rotate it by 180° about an axis passing through the central O atom (between the two H atoms) it will look the same as before. ... Every molecule has at least this element.

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Answer 2

Answer:

A symmetry operation is an action that leaves an object looking the same after it has been carried out. For example ,if we take a molecule of water and rotate it by 180 about an axis passing through the central atom (between the two H atom) it will look the same before ............Every molecule has it least this element.