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Q.

Is it true that boron has 5 electrons in its outermost shell?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
The total number of electrons which are present in the outermost or the valence shell is known as the valence electrons. Boron has the atomic number 5. The electronic configuration of the element boron (B) can be represented as 2,3. Therefore, the valence electrons of boron(B) are three.
The correct statement would be, “Boron has 3 electrons in the outermost shell”.
 
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