Which metallic element is unique among metals for being in a liquid state at normal room temperature?

Explanation

Mercury is unique among metals for existing as a liquid at normal room temperature, a property caused by unusual characteristics of its atomic structure that result in relatively weak bonding between its atoms compared to most other metals. Because of its liquid state and high density, mercury was historically used in various instruments, including some traditional thermometers and barometers, though its use has significantly declined in many applications due to serious health and environmental concerns associated with mercury exposure. Mercury remains solid only at temperatures below about -39 degrees Celsius. Explore more Everyday Science MCQs on mcqstutor to keep practicing.