The total number of valence electrons in \[4.2\,gm\] of \[N_{3}^{-}\] ion is (\[{{N}_{A}}\] is the Avogadro's number) [CBSE PMT 1994]

The total number of valence electrons in \[4.2\,gm\] of \[N_{3}^{-}\]�

1.	The total number of valence electrons in \[4.2\,gm\] of \[N_{3}^{-}\] ion is (\[{{N}_{A}}\] is the Avogadro's number) [CBSE PMT 1994]
A.	\[1.6{{N}_{A}}\]
B.	\[3.2{{N}_{A}}\]
C.	\[2.1{{N}_{A}}\]
D.	\[4.2{{N}_{A}}\]
Answer» B. \[3.2{{N}_{A}}\]

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The total number of valence electrons in \[4.2\,gm\] of \[N_{3}^{-}\] ion is (\[{{N}_{A}}\] is the Avogadro's number) [CBSE PMT 1994]

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