Question

name elements valancy and group is same​

Answer 1

Answer:

Elements in same group show same valency because they have same number of electrons in ther 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 valancy. This is because the elements have same number of valance electrons

Step-by-step explanation:

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Answer 2

Answer:

The valency of an elements is determined by the number of valence electrons present in the outer shell of an atom. Since all the elements of a group have the same number of valence electrons. Therefore, they have same valency.For example, alkali metals have one valence electron. Hence, their valence is 1. Similarly, alkaline earth metals have two valence electrons. Hence, their valence is 2.

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