no. Radon is a radioactive gas.
Radon is a gas at room temperature.
At room temperature radon is a gas.
Mercury is the only metal to be liquid at room temperature.
Mercury is a metal element which is liquid at room temperature
If you mean group 7A, the element that is a liquid at room temperature is bromine.
Radon is a gas at room temperature.
Bromine is the only nonmetal element that is a liquid at room temperature.
These are the noble or inert gases, and they are all stable except for radon. Radon has no stable isotopes.
Mercury is the metal that is liquid at room temperature
Liquid: mercury. Gas: neon.
Radon is a gas at room temperature, and quite a bit below it, too. A link can be found below.
Mercury is a metal element which is liquid at room temperature