Question

Write down the electronic configuration of Mg (Z=12) and Cl (Z=17).b) Explain the formation of magnesium chloride with suitable diagram. OR What are amphoteric oxides? Show that aluminium oxide is an amphoteric oxide with suitable chemical equations.​

Answer 1

Answer:

Explanation:

tomic 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.  

Mg  

2+

=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.