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Mercury is a liquid metal because...

Mercury is a liquid metal because

A

It has a completely filled d- orbital that prevents d-d overlapping of orbitals

B

It has a completely filled d- orbital that causes d-d overlappping

C

It has a completely filled s- orbital

D

It has a small atomic size

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The correct Answer is:
A
Mercury is a silvery white heavy liquid (sp. Gravity 13.6). It has a completely filled d orbital that prevents d-d overlapping of orbitals.
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