Question

what are the similarities in properties of elements in halogen family

Answer 1

"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 these elements share 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."

Answer 2

Answer:

The similarities in the properties observed in the elements of the halogen family are as follows:-

Explanation:

According to the law of electron octet the elements only follow this law i.e it has only 7 electron in the outermost cell and accordingly the of every element in the halogen family is only having one valency to complete the last shell i.e (7-8)=1 and to achieve the stability like the 18th group of the modern periodic table it takes up one electron from any other elements than form compounds and bonds with those elements.

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