Question

of
a
* (2) Explain by drawing a figure of the
electronic configuration : Formation
magnesium chloride from magnesium and
chlorine.​

Answer 1

Explanation:

Atomic number of Magnesium(12) atom is 12.

Electronic configuration is :

Mg = 2, 8, 2

So it contains 2 valence electron. In order to achieve the nearest noble gas configuration, it loses two electrons to form Magnesium ion.

Mg2+=2,8

Atomic number of Chlorine(Cl) atom is 17.

Electronic configuration is :

Cl = 2, 8, 7

So it contains 7 valence electron. In order to achieve the nearest noble gas configuration, it gains one electron to form Chloride ion.

Cl−=2,8,8

An Ionic bond is formed between Magnesium ion and two Chloride ion by complete transfer of one electron to each Chlorine ion.