find out application of all halogens and inert gases
Answers
Explanation:
Fluorine, chlorine, bromine and iodine make up the family of halogens. The last three being the most common. All the halogens exist as molecules, bonding covalently to their own atoms - adding stability as they complete their full outer shells.
Properties:
They all form coloured vapours:
Chlorine - green.
Bromine - red/brown.
Iodine - purple.
Melting points and boiling points are relatively low due to molecules been held together by weak inter-molecular forces. As you descend the group the melting and boiling point increases as the attraction between molecules gets larger.
As with the noble gases, the halogens do have similar properties but not exactly the same ones. For example, the reactivity of the element decreases as you descend the group.
This can be seen if we observe the reaction between iron wool and the different halogens.
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So why are the halogens reactive?
The answer lies in the electronic configurations and specifically their outer shell electron configurations. The halogens need only gain 1 electron from another atom to gain more stability.