Question

(a) Write down the electron arrangement in (i) a magnesium atom, and (ii) a chlorine atom.
(b) How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) a chlorine atom?
(c) Show the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons.
(d) State whether magnesium chloride will conduct electricity or not. Give reason for your answer.
(e) Why are covalent compounds generally poor conductors of electricity?

Answer 1

Answer:

(a). K. L. M

mg. 2. 8. 2. (+2)

cl. 2. 8. 7. (-1)

(b) mg,2electron are their in outer most shell (+2).

cl,7electron are their in outer most shell.(-1)

(c). Mg. Cl

+2. -1

Cl× Cl can compromise with mg+2

MgCl2