# Calculate the number of atoms in 60 g of neon [Ne = 20]

1 mole of Ne weighs 20 g and has 6.023 × 1023 atoms

60 g of Ne will have = 6.023×10^{23}\over 20 × 60

= 60\over 20 × 6.023 × 1023

= 3 × 6.023 × 1023

Hence, number of atoms in 60 g of Ne = 3 × 6.023 × 1023 atoms

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