#.Answer the following questions:
Q-1. What are Atoms and Molecule? Explain with example,
Q-2.Fill in the blanks
I. The Size of Atoms are measured in ___________
2. Nanometre (nm) =_______
3. Water molecule =________ metre = _________ nanometre
4. Atom of Hydrogen =________ nanometre
Q-3. Name any three Atoms.
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