Question

5 MOLES OF HELIUM IS LIGHTER THAN ONE MOLE OF SODIUM. GIVE REASON.​

Answer 1

If 5 moles of helium is lighter bcoz it contains electricity

Answer 2

Answer:

1 mole of helium.=4 g

5 moles of helium = 4×5= 20 g

1 mole of sodium= 22g

Explanation:

This is because atomic weight depends on atomic number.

1. Atomic number of helium is 2
2. Atomic number of sodium is 11
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