Draw and explain the normal modes of vibration of water molecule.

The water molecule (H₂O) has a bent structure with an angle of about 104.5° between the two hydrogen atoms. This results in three normal modes of vibration: symmetric stretching, asymmetric stretching, and bending (or scissoring).

1. Symmetric Stretching: In this mode, both hydrogen atoms move simultaneously away from or towards the oxygen atom along the bond axis. The oxygen atom remains ________ ________ _____ __________ ____ ____ _____.
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