Chemistry, asked by Anonymous, 7 months ago

pls give an ans for this !
Shivanee sis ... this is ur Ques. which I was also not able to do !​

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Answered by Anonymous
4

2 is your answer dear......

100% right answer

Answered by shweta7013
4

Answer:

Dear ,whoever u r

Ur answer is 1 electron.

For example take an element of Alkali group

hmm Sodium Na

Electronic configuration = 2, 8 ,1

So it contains 1 electron in its valence shell.

Note : Alkaline earth metals have 2 electrons in their valence shell

thank u

:)

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