Identify the following as molecule of an element (ME) or
molecule of a compound (MC). Also, arrange the molecules in the ascending order of their atomicity.
Arranging the molecules in the ascending order of their atomicity:
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Solution
I. Water is a molecule of compound (MC).
II. Phosphorus is a molecule of element (ME).
III. Nitrogen is a molecule of element (ME).
Arranging molecules according to their atomicity:
Nitrogen (Atomicity: 2) < Water (Atomicity: 3) < Phosphorus (Atomicity: 4)