Question

7. Write scientific reason of :-
Elements belonging to the same group have the same valency.
please don't send too long ans.

please give only ans nothing else.​

Answer 1

Answer:

Elements in same group show same valency because they have same number of electrons in there outermost shell i.e. Valence shell. Since valency depends upon the valence electrons so they have same valency. Elements in the same group have same valency.