Question

Detail:
1. what is called electronic configuration? write the rules followed for electronic configuration.​

Answer 1

Answer:

Electric configuration is the division of electrons in an atom.

Explanation:

Rules of electric configuration:-

1.The no. of electrons increases as the no. of shells increases.

2.First shell have two no. of electrons(k+2).

3.Then the no. of electrons increases according to the properties of the atom.

Answer 2

Rules :-

• Paule's Exclusion Principle

1. It states that no two electrons could have same set of Quantum numbers.
2. It also states that only two electrons can accommodate in same orbital.

• Aufbau's Principle

1. It states that in ground state of atom the filling of an electron in the orbital takes place in increasing order of their energy.

• Bohr Bury rule

1. The orbitals with the lesser value for (n+l) is filled before with greater value of (n+l).
2. If two orbitals have same value for (n+l) then orbital with lesser value of n will be filled first.

Increasing order :

1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p 8s .

This is the increasing order of energy level in orbitals. Electrons are filled in the increasing order.