Question

how does valency of an element very across a period?​

Answer 1

Answer:

The valency of an element is dependent on the number of electrons in the outermost shell of the electron. In a group all constituting elements will have the same valency because they all have the same number of electrons in the outer shells. Across the a period, the number however increase by 1.

Answer 2

Answer:

here is ur answer ...

The valency of an element is dependent on the number of electrons in the outermost shell of the electron. In a group all constituting elements will have the samevalency because they all have the same number of electrons in the outer shells. Acrossthe a period, the number however increase by 1.

hope this will help uh ....

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