Question

(a) Show the formation of MgCl2, CaO and NaCl by electron transfer?​

Answer 1

Explanation:

Electronic configuration of sodium: ... Chlorine atom will gain one electron to gain noble gas configuration and form chloride ion with -1 charge. In Magnesium chloride two electrons from magnesium metal gets transferred to two chlorine atoms and thus is formed.

Answer 2

Answer:

Electronic configuration of Mg = 2, 8 , 2 Stable form >> 2,8 hence valency = +2

Electronic configuration of chlorine = 2, 8 , 7 Stable from >> 2, 8 ,8 hence valency = -1

Formation of MgCl

2

:

Formation of chlorine ion by accepting an electron,

Cl(2, 8, 7) + e- →Cl

−

When 2 free chlorine atoms accept the electrons given by single magnesium ion the compound MgCl

2

is formed.