The term atomic orbital refers to the physical region or space where the electron can be calculated to be present
Each orbital in an atom is characterized by a unique set of values of the three quantum numbers:
- n - the electron’s energy
- ℓ - the electron’s angular momentum
- m - the electron’s angular momentum vector component (the magnetic quantum number)
Each such orbital can be occupied by a maximum of two electrons, each with its own spin quantum number s.
The simple names s orbital, p orbital, d orbital and f orbital refer to orbitals with angular momentum quantum number ℓ = 0, 1, 2 and 3 respectively
Orbitals Table

Example 1s2s2p Orbitals
