2g of H2 = 1mole = 6.022 x 10²³molecules

So 1 g of H2 will have = 1/2 mole = 6.022 x 10²³ / 2molecules

Number of atoms in hydrogen molecule = 2

Number of atoms in 1 g of H2 = 3.011 x 10²³

32 g of O2 = 1 mole = 6.022 x 10²³molecules

1 g of O2 will have = 1/ 16 mole = 6.022 x 10²³ /32 molecules

Number of atoms in 1g of oxygen = 0.376 x 10²³

28 g of N2 will have = 1Mole = 6.022 x 10²³

1 g of N2 will have = 1/28 Mole = 6.022 x10²³ / 28 molecules

Number of atoms in 1 g N2 = 0.430 x 10²³

So from above discussion we conclude that the 1 g of hydrogen have maximum number of atoms.

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