Question

(9) (i) Why the element 'He' is placed in p-block along with noble gas
elements but not in s-block?
(ii) Why IA group elements don't show +2 oxidation sate?
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Answer 1

Answer:

hii

We know alkali metals have 1 valence shell electron.

Explanation:

When IA metals or Alkali metals loose 1 electron

then they will achieve the noble gas configuration .And they will show +1 oxidation state.

So why they will loose two electrons. If they are getting stable by losing 1 .

That's why they do not show +2 oxidation state .

hope everything is cleared.

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