Question

Correct order of electronegativity in below elements

(a) \(1s^2 2s^2 2p^3\)

(b) \(1s^2 2s^2 2p^4\)

(c) \(1s^2 2s^2 2p^5\)

(d) \(1s^2 2s^2 2p^2\)

(1) \(a> b > c > d\)

(2) \(c > b > a > d\)

(3) \(d > c > b > a\)

(4) \(c > b > d > a\)

Answer 1

Correct option is:  (2) \(c > b > a > d\)

(a) \(1s^2 2s^2 2p^3 \Rightarrow N\)

(b) \(1s^2 2s^2 2p^4 \Rightarrow O\)

(c) \(1s^2 2s^2 2p^5 \Rightarrow F\)

(d) \(1s^2 2s^2 2p^2 \Rightarrow C\)

Moving from left to right in a period EN increase as \(Z_{eff}\) increases.