which has more number of atoms: 50 grams of potassium or 50 grams of calcium?
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Atomic mass of Al = 27 u
So 27 gms of Aluminum contains N = 6.022*10²³ atoms
50 gms of Al contains : 50 N/27 atoms
Atomic mass of Fe = 56 u
So 56 gms of Fe contains N atoms
50 gms of Fe contains 50N/56 atoms
Clearly Aluminum has more number of atoms. This is because Aluminum has a smaller atomic mass and is lighter.
So 27 gms of Aluminum contains N = 6.022*10²³ atoms
50 gms of Al contains : 50 N/27 atoms
Atomic mass of Fe = 56 u
So 56 gms of Fe contains N atoms
50 gms of Fe contains 50N/56 atoms
Clearly Aluminum has more number of atoms. This is because Aluminum has a smaller atomic mass and is lighter.
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