Chemistry, asked by lakshya03360, 24 days ago

Why do Elements of group 1 and group 17 have valency 1

Answers

Answered by jubedabegum87355
1

Answer:

This is because elements of group 1 have 1 electron in valence shell so they can donate 1 electron whereas in group 17 elements have 7 electrons in valence shell so they can accept 1 electron. Valency is the combining capacity of an element.

Explanation:

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Answered by Nsriraam
0

Explanation:

In group 1st year elements are +1 these are alkaline earth metals there has to lose one electron to get stable 1 these have more electropositivity

In group 17 a.r. halogen they had to need one electron to get stable they had more electronegativity

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