They are various to facets belonging to various other groups due to their resistance to type barisalcity.orgmpounds. The factor behind their unreactivity is their full outer shells that give stability to the atoms.

You are watching: How are halogens and noble gases different





Although they have similar properties they room not identical. Because that example, together you descend team 0 the thickness of the gas boosts as walk the mass of a solitary atom.

Fluorine, chlorine, bromine and also iodine make up the household of halogens. The last 3 being the many barisalcity.orgmmon. Every the halogens exist as molecules, bonding barisalcity.orgvalently to their very own atoms - adding stability as they finish their full outer shells.


They all form barisalcity.orgloured vapours:

Chlorine - green.

Bromine - red/brown.

Iodine - purple.

Melting points and also boiling clues are fairly low due to molecules been organized together by weak inter-molecular forces. As you descend the team the melting and boiling point increases together the attraction in between molecules gets larger.

As through the noble gases, the halogens do have similar properties but not exactly the same ones. For example, the reactivity the the facet decreases together you descend the group.

This can be viewed if we observe the reaction between iron wool and the different halogens.

So why room the halogens reactive?

The prize lies in the digital barisalcity.orgnfigurations and specifically their external shell electron barisalcity.orgnfigurations. The halogens require only acquire 1 electron from one more atom to gain more stability.

See more: Which Action Occurs In Both Presidential And Parliamentary Governments? ?

Fluorine is the many reactive due to the fact that the electron that is attempting to lure is barisalcity.orgming into a barisalcity.orgvering closest barisalcity.orgme the optimistic nucleus. Greater attraction means that it is much easier to get an extra electron - therefore it is the many reactive.

Placing facets in Order group I and also Group II

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