Question

What are the similarities in properties of elements in Halogen family?

Answer 1

the elements of group 7a is referred to as halogen. in order to increasing atomic number:

Fluorine

Chlorine

Bromine

Iodine

Astatine

All in this group are characterized by the presence of 7 e- in an outer shell, and hence have the ability to gain an e- to form negative ions w/ a completed octet of valence e-’s.

All share these traits of being very reactive, and in particular form substitution compounds w/ numerous organic compounds. Although these elements also have other valences all have a -1 valence in common.

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Answer 2

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Halogens are group 7A elements and have same configuration of

=> nS2 nP5

All halogens have a lack of 1 electron to attain its octets and thus have 7 electrons in the outer shell.

They all are very likely to attain an octet state and thus have a probable valency of - 1. They are electronegative and can also have valencies of +1, +3,+5, +7 as per reacted with the elements having more electronegativity than them.

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