Question

Atomic number of aluminium is 13. Give the electron configuration of AL3+...​

Answer 1

Answer:

We know that 1st cell have 2 electrons.

2nd cell have 8 electrons.

and valance cell need 8electrons to stable.

Aluminium have 3 electrons in valance cell.

Answer 2

The electronic configuration of Al³⁺ is 10.

Explanation:

The atomic number of Aluminium is 13. The number of electrons in all shells are as follows :

In first shell = 2

In second shell = 8

In third shell = 3

We need to write the electron configuration of Al³⁺. It is cation which shows that three electrons are removed from Aluminium. So, the electronic configuration of Al³⁺ is 10.

Therefore, it is the required solution.

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