Question

Electrons in the last shell of X, Y, W and Z are 2, 6, 4 and 1 respectively. Which of the following
statement is correct?
(NSEJS/2018-2019)
(A) melting point of compound formed by X and Y is more than that of by W and Z.
(B) compound formed by X and Y is more volatile than that of by W and Z.
(C) melting point of compound formed by X and Z is more than that of by W and Y.
(D) Incomplete information so inference cannot be drawn.​

Answer 1

please refer the attached file