Statement-I: Mercury is liquid at room temper | vedclass

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(A) The electronic configuration of mercury $(Hg)$ is $[Xe] 4f^{14} 5d^{10} 6s^2$.Statement-$I$ is correct because mercury is the only metal that exis

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Both statement $I$ and statement $II$ are correct

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(A) The electronic configuration of mercury $(Hg)$ is $[Xe] 4f^{14} 5d^{10} 6s^2$.Statement-$I$ is correct because mercury is the only metal that exists in a liquid state at room temperature due to its unique electronic configuration.Statement-$II$ is also correct. Because the $5d$ subshell is completely filled $(5d^{10})$,there are no unpaired electrons available for metallic bonding. The $6s$ electrons are also tightly held by the nucleus due to relativistic effects,resulting in very weak metallic bonding,which explains its low melting point and liquid state.

Statement-$I$: Mercury is liquid at room temperature.
Statement-$II$: In mercury,there is no unpaired $d$-electron and thus,metallic bonding is weakest.

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Statement-$I$: Mercury is liquid at room temperature.Statement-$II$: In mercury,there is no unpaired $d$-electron and thus,metallic bonding is weakest.