Question

What do you mean by Electronic Configuration of an element ?

Answer 1

Electronic configuration means distribution of electrons in orbit of an element

Order
1st shell→2n²→2
2nd shell→2n²→2×2²→8
3rd shell→2n²→2×3²→18
And same on

Answer 2

The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. 

For example:

Element: Oxygen
Atomic Number: 8
Electronic Configuration:
$1 {s}^{2} 2 {s}^{2} 2 {p}^{4}$



hope it helps u ^-^