Identify the elements in the Periodic Table that are liquid at room temperature.

Bromine (Br)

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Mercury (Hg)

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Helium (He)

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Carbon (C)

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Solution

The correct options are
A Bromine (Br)
B Mercury (Hg)
Bromine (Br) and Mercury (Hg) are the only elements that are liquids at room temperature.

The melting point of mercury and bromine are $- {38.8}^{o} C$ and $- {7.2}^{o} C$ respectively. Since they are slightly below room temperature, these metals exist as liquids at that temperature.

The melting point of helium is $- {272.2}^{o} C$ . So helium will exist in the liquid state only at very low temperature.

The melting point of carbon is $3550^{o} C$ which means that carbon doesn't actually melt.

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