Multiple choice general knowledge science & technology

The only nonmetal which is liquid at room temperature is _.

  1. bromine

  2. mercury

  3. astatine

  4. iodine
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A Correct answer
Explanation

Bromine is the only non-metal that exists as a liquid at room temperature (25°C). It is a halogen in Group 17 with atomic number 35, appearing as a reddish-brown volatile liquid that readily evaporates to form a similarly colored gas. Mercury is a metal, while astatine and iodine are solids at room temperature.

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