Which one of the following elements exhibits a maximum number of valen

1.	Which one of the following elements exhibits a maximum number of valence electrons? (a) Na (b) Al (c) Si (d) P
Answer» The answer is (d) P Electronic configuration of Na, Al, Si and P are 2,8 1, 2,8,3,2,8,4, and 2,8,5 respectively. Valence electrons in Na, Al, Si and P are 1,3,4 and 5. Hence phosphorus has maximum number of valence electrons.

Which one of the following elements exhibits a maximum number of valence electrons? (a) Na (b) Al (c) Si (d) P

Answer»

The answer is (d) P

Electronic configuration of Na, Al, Si and P are 2,8 1, 2,8,3,2,8,4, and 2,8,5 respectively.
Valence electrons in Na, Al, Si and P are 1,3,4 and 5.
Hence phosphorus has maximum number of valence electrons.