Question

(d) What is the relationship between group number and valence electrons?
(1) Group number increases as the valence electron increases
(i). Group number is same as valence electrons
(u) Group number is 8-valence electrons
(iv) Group number =valency​

Answer 1

#BAL

(1) group number increases as the valence electrons increases

This is the relationship between group number and valence electrons that is why the modern periodic table is very useful in finding the valency of an atom of an element

Answer 2

Group number is equal to the number of valance electrons.

Explanation:

The number of valance electrons is equal to the group number of the representative elements. The relation between the group number and valance electrons is that "group number is equal to the number of valance electrons".

Group 2 has 2 valance electron.

Group 3, Boron family have 3 valence

Group 4, Carbon group have 4 valence

and so on

Hence, the correct option is (iii) "group number is equal to the number of valance electrons".

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What is the relationship between group number and valence electrons?

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