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Density of which of the following elements is highest.A) ${\text{Pt}}$B) ${\text{Hg}}$C) ${\text{Mn}}$D) ${\text{Cu}}$

Last updated date: 20th Jun 2024
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Hint:The density of an element is defined as mass divided by volume. Going from up to down in the group of periodic tables the volume doesn’t increase much. One can relate these concepts with the given option elements and find out density value.

4) Now let's analyze the given elements one by one. The element ${\text{Pt}}$ is present far low in the d-block hence the volume of the element is lower than other elements. The platinum has a mass of ${\text{195 u}}$ and it is highest in all the given options elements. Hence, platinum has the highest density.
5) The elements ${\text{Mn}}$ and ${\text{Cu}}$ are present in a very early period in the d-block hence they have more volume and resulting in a lower density.
6) The element ${\text{Hg}}$ has mass numbers more than platinum but the volume also increases due to an increase in the size of the element due to more electrons. Hence, it will have less density than platinum.
Therefore, the density ${\text{Pt}}$ of the element is highest which shows option A as the correct choice.