Which of the following metals is a liquid at room temperature?

This question was previously asked in
RRB ALP CBT I 17 Aug 2018 Shift 3 Official Paper
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  1. Sodium
  2. Calcium
  3. Mercury
  4. Lithium

Answer (Detailed Solution Below)

Option 3 : Mercury
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Detailed Solution

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The correct answer is Mercury.

Key Points

  • A heavy, silvery d-block element, mercury is the only metallic element that is liquid under standard temperature and pressure conditions;
  • The only other element that is liquid under these conditions is bromine, although metals such as cesium, gallium, and rubidium melt just above room temperature.

Additional Information

  • Sodium:
    • Sodium is part of the alkali metal family along with lithium and potassium.
    • As one of the two ingredients of our table salt is its greatest reputation.
  • Calcium:
    • Calcium with atom number 20 is represented in the periodic table by the symbol Ca.
    • Calcium (Ca) is an important element that makes our bones strong and able to withstand our loads.
  • Lithium:
    • Lithium is a chemical element that appears first in the alkalis of the periodic table.
    • It is the lightest solid metal.

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