The given elements are to be arranged according to the decreasing number of atoms in equal masses of magnesium, zinc, and silver.
The atomic mass of an element is defined as the sum of number of protons and number of neutrons in the nucleus of an atom. Molar mass of an element is determined from atomic mass of an element.
The formula to calculate the number of moles of an element is,
The formula to calculate the number of atoms is,
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