Multiple choice general knowledge

the metal mercury

  1. is the hardest known metal

  2. is a liquid at room temperature

  3. is highly radioactive

  4. is extensively used in aircraft construction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mercury is the only metal that is liquid at room temperature (standard conditions). This unique property is due to its weak metallic bonding and low melting point of approximately -39°C. It is not the hardest metal, not highly radioactive, and not extensively used in aircraft construction.

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