Question

find out the electro valency of Al in Alcl3​

Answer 1

Explanation:

Valency of aluminium: The atomic number of Aluminium is 13 ,so its electronic configuration is 2, 8, 3 . It has 3 electrons in outermost shell . The aluminium atom can lose these 3 electrons to form the aluminium ion ,Al³+, having an inert gas electron configuration of 2,8.

Answer 2

Question:

Find out the electro valency of Al in Alcl3​.

Concept:

Electro valency:

Electro valency is the number of gained or lost electrons during formation of an ionic bond for stable electron configaration.It could be defined as net electric charge of an ion.

Answer:

The electro valency of Al in Alcl3​ is 3.

Explanation:

Electro valency of an element is related to how many electrons are in the outermost shell. Aluminium's atomic number is 13 ,so its electronic configuration is 2, 8, 3 thus it has 3 electrons in it's outermost shell and it's electro valency is 3.

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