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States of matter (non-metals): Which non-metal remains liquid at room temperature? Identify the correct element among common p-block non-metals. Choose the correct option.

Difficulty: Easy

Bromine
Chlorine
Iodine
Mercury

Correct Answer: Bromine

Explanation:

What is being asked?
The non-metal that is liquid near 25 °C.

Given data

Room temperature ~ 20–25 °C

Concept/Approach
Bromine (Br₂) is a reddish-brown liquid non-metal at room temperature; chlorine is gaseous, iodine is solid, and mercury (liquid) is a metal.

Final Answer
Bromine

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