Science, asked by rupkamalbora19, 8 months ago

valency of 1st group

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Answered by Anonymous

5

The valency of an element is determined by the number of outer shell (valence) electrons. ... All elements in group 1 have 1 valenceelectron so they have a valency of +1 as they will tend to give up 1 electron. This is the same for group 2 which will give up two electrons and group 3 which will give up 3 electron .

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Answered by yogeshsvasu

2

Answer:

1st group have 1 valency

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