Chemistry - PERIODIC TABLE Question with Solution | TestHub

Electronic configuration of four elements $\mathrm{A},\mathrm{B},\mathrm{C}$ and D are given below :
(A) $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^3$
(B) $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^4$
(C) $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^5$
(D) $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^2$
Which of the following is the correct order of increasing electronegativity (Pauling's scale)?