The electronic configurations of four elements are given below: (i) 1 s 2 2 s 2 2 p 5 (ii) 1 s 2 2 s 2 2 p 4 (iii) 1 s 2 2 s 2 2 p 3 (iv) 1 s 2 2 s 2 2 p 6 3 s 2 3 p 4 Which of the following arrangeme

Question

The electronic configurations of four elements are given below:

(i) $1 s^{2} 2 s^{2} 2 p^{5}$ (ii) $1 s^{2} 2 s^{2} 2 p^{4}$

(iii) $1 s^{2} 2 s^{2} 2 p^{3}$ (iv) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}$

Which of the following arrangements gives the correct order in terms of increasing electronegativity of the elements?

TestHub · Accepted Answer

Electronegativity increases across a period and decreases down a group. (iv) < (iii) < (ii) < (i).

Chemistry - PERIODIC TABLE Question with Solution | TestHub