Calculate the number of atoms in120 g of calcium and 120 g of iron which has more mass
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We know that the number of atoms in 1 mole of any element is given by the "Avagadro number " which is 6.023 ×10^23 . So, number of atoms in 3 moles of Ca = 3 × 6.022×10^23 atoms. So, 120 g of Calcium has more atoms than 120 g of Iron. =5.179 ×10^23 atoms.
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It is known as the number of stond in 120gm of calcium And Florence
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