Multiple choice general knowledge science & technology

Which of the following is the lightest metal?

  1. Mercury

  2. Lithium

  3. Lead

  4. Silver
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lithium is the lightest metal with a density of only 0.534 g/cm³. Mercury is very dense (13.5 g/cm³), lead is heavy (11.3 g/cm³), and silver has moderate density (10.5 g/cm³). Lithium's low atomic mass and crystal structure make it the least dense metal.

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