Is a halogen gas that is yellow and explosive?

Answer 1

Fluorine is a pale yellow gas and very reactive.

Chlorine is a pale green - which could look yellow depending on the lighting. it too is highly reactive.

Of the two, you would probably be looking for fluorine as the best answer.

Answer 2

Fluorine is an element that is a halogen gas that is yellow and explosive.

Answer 3

Chlorine. Explosive with hydrogen, (not the ordinary definition of explosiveness)

Answer 4

There are two Halogens that are gasses at room temperature: fluorine and chlorine, they are not flammable but are oxidizers.