Question

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Answer 1

Hey sahil here is your answer!!

100g of sodium

No.of sodium atoms.
given mass by molar mass×6.022 ×10 to the power 23

=100by23 × 6.022 ×10 to the power23
=2.62×10 to the power 24 atoms

100g of irons
No.of iron atom

=given mass by moral mass ×6.022 ×10 to the power23
=100 by 56×6.022×10 to the power 23
=1.07×10to the power 24 atoms.
hence,the sodium has more number of atoms.

hope it helps.......