Which has more number of atoms 100 gms of Sodium or 100 grams of iron given atomic mass of Na = 234 , Fe = 564

Explanation

Atomic mass of Na=23u
Then, gram atomic mass of Na=23g
Now, 23g of Na contains = `6.022x10^(23)` g number of atoms.
thus, 100g of Na contains = `6.022xx10^(23)//23x100`
`-2.6182xx10^(24)` Number of atoms.
Again atomic mass of Fe=564
The, gram atomic mass of Fe=56u
Now, 56 g of Fe contains=`6.022x 10^(23) g`number of atoms.
hus 100g of Fe contains `6.022x 10^(23)// 56x 100` of number of atoms.
`=1.0753xx10^(24)` number of atoms.
Therefore, 100g of sodium contains more number of atoms than 100 gram of Iron