Are halogens vapours colourless

Answer 1

None are.

There are five halogens that range from astatine (the densest) to fluorine (the lightest).

We do not know what Astatine smells like as it is radioactive and decays quickly into other elements. Therefore large quantities do not exist on earth. However, if it is like the others it will have a toxic and biting smell.

Iodine has a rather objectionable smell, especially as a vapour, but even the solid ( a dark, almost black crystalline solid at room temperature) has a slight pungent smell.

Bromine is a blood-red liquid at room temperature and has a pungent, harsh, biting smell that attacks the nasal passages.

Chlorine is a green gas at room temperature, and has a strong, harsh, biting, bleach-like smell. Again it attacks the respiratory system.

Fluorine is a pale yellowish gas which iis the most reactive of the halogens. It has a severely harsh bitinng smell that immediately causes severe pain due to the instantaneous destruction of the respiratory tract lining.

Therefore all the halogens are extremely toxic in the elemental state and have bad smells that vary depending on the haogen itself.

Answer 2

Halogens are not typically found as vapours in their elemental form. However, when halogens do exist as vapours, they can exhibit unique colors. For example, chlorine gas appears yellow-green, bromine vapour is reddish-brown, and iodine vapour appears purple.

Answer 3

No. Fluorine and chlorine are more or less green, bromine is orange, and iodine is violet to red.

Answer 4

Yes!

Answer 5

no they are coloured

Answer 6

yes