Comment on the (i) reactivity (ii)colour(iii) physical state of g… - Vidyadip

Question

Comment on the (i) reactivity (ii)colour(iii) physical state of group 17 elements.

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Answer

Group 17 elements or halogens:

Reactivity: Halogens are the most reactive non-metals, their reactivity decreases down the group. Fluorine is the most reactive halogen and iodine is the least reactive halogen.
Colour: Fluorine is a pale yellow gas, chlorine is a greenish-yellow gas, bromine is a reddish-brown liquid and iodine is a violet solid.
Physical state: Gaseous

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