Question
Chemistry Question on p -Block Elements
Which one of the following is the most electronegative element configuration?
A
1s2,2s22p6,3s23p6
B
1s2,2s22p6,3s1
C
1s2,2s22p6,3s2
D
1s2,2s22p5
Answer
1s2,2s22p5
Explanation
Solution
Fluorine is the most electronegative element. Its atomic number is nine and hence its configuration is as F(9)=1s2,2s2,2p5 Due to its configuration,
it has maximum effective nuclear charge, hence it shows maximum electro negativity.