Which halogen is a gas at room temperature and is pale yellow in color?

Explanation

Fluorine is a pale yellow gas at room temperature. It’s the most reactive element. Fluorine is extremely dangerous to handle.

Chlorine is yellow-green gas. Bromine is reddish-brown liquid. Iodine is purple-black solid. Their states differ at room temperature.

Remember: Halogens get darker down the group. Fluorine and chlorine are gases.