HALOGENS 1. Fill in the following table Halogen
Symbol
Fluorine
Ox. Numbers
Colour
State
Structure
−I Cl
−I, I, III, V, VII Liquid Dark grey
I2 molecules
2. Occurrence: Halogens are so reactive/unreactive that they never/allways occur free. They occur naturally in compounds with metals.
3. Uses:
fluorine:
chlorine:
bromine:
iodine:
4. Correct the mistakes in the following text: Halogens are: chlorine, oxygen, bromine and hydrogen. Chlorine is a colourless gas with a pungent smell. It is not toxic and it is used as a bleaching agent and as a disinfectant. It occurs in the atmosphere together with oxygen and nitrogen and it forms diatomic molecules