Find out number of atoms present in 1gram of he . find out volume at ntp.
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4g of He contain 6.022×10 raise to the power 23 atoms.
1g of He will contain =6.022× 10 ^23×1/4
= 1.5× 10^23 atoms
1g of He will contain =6.022× 10 ^23×1/4
= 1.5× 10^23 atoms
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