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Q.

The number of valence electrons in Si


 

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a

5

b

4

c

6

d

3

answer is B.

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Detailed Solution

The electrons present in the outermost shell of an atom are called valency electrons. The electrons present on the inner shell of the atoms are called core electrons 

The number of valency electrons in SiQuestion Imageoutermost electrons in s and p are 2+2=4

Hence, The number of valence electrons in Si 4


 

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The number of valence electrons in Si