If a krypton atom has a mass of 84 and an iron atom has a mass of 56 and the distance between particles was the same, which atom is denser and why

Explanation:

As it is known that density is defined as the mass present in per unit volume.

Mathematically,        Density =

Since, density is directly proportional to mass. Hence, more is the mass of an object more will be its density.

Hence, mass of krypton is 84 whereas mass of iron is 56. This shows that mass of krypton is more than the mass of iron.

Therefore, density of krypton is more than the density of iron.

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