Question

How many quantum numbers are required for to identify the orbital?

Answer 1

Quantum numbers:

1. Quantum numbers are the numbers that identify and categorize the various atomic orbitals and electrons that make up an atom.
2. They are the group of four integers that can be used to determine all the details about every electron in an atom, including their energy, location, space, kind of occupied orbital, and even the orientation of that orbital.
3. The four quantum numbers present are the Principal quantum number, Azimuthal quantum number, the Magnetic quantum number, and the Spin quantum number.
4. The quantum number represented by n is the principal quantum number, which indirectly specifies the size of the electron orbital.
5. It is always given an integer number, but it can never be zero.
6. It describes the energy level.
7. The azimuthal quantum number is a quantum number that characterizes the form of an atomic orbital and defines its orbital angular momentum.
8. It is represented by “l” and its value is $0,1,2,3....(\mathrm{n}-1)$
9. Magnetic quantum number divides subshells (such as s,p,d,f) into distinct orbitals and places the electron in one of them.
10. It is represented by “m” and its value can be negative, positive, or zero.
11. It specifies the direction of an orbital of given energy (n) and shape (I).
12. Spin quantum number describes the spin of the electron and is represented by “s” or m_s. Its value is $-\frac{1}{2}$or$+\frac{1}{2}$.

Therefore, four quantum numbers are required to identify the orbital.