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Metals at room temperature: Which metal is liquid at ordinary room temperature (~25 °C)? Select the standard example used in science and daily life. Choose the correct metal.

Difficulty: Easy

Mercury
Gallium
Sodium
Lithium

Correct Answer: Mercury

Explanation:

Given data

Ask: Metal that is liquid at ~25 °C.

Concept/Approach
Mercury (Hg) has a melting point of −38.83 °C and remains liquid at room temperature. (Gallium melts near 29.8 °C, so it can be solid at cooler room conditions; alkali/rare-earth options listed are solids at 25 °C.)

Final Answer
Mercury

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