Question

An electron in an atom can be identified by:

• A. charge
• B. its spin
• C. four quantum numbers
• D. the path in which it is spinning

Answer 1

Answer: (C)

four quantum numbers

An electron in an atom can be identified by four quantum numbers i.e.,

(1) Principal quantum number $\to$ indicates the size of the orbital or energy level.

(2) Angular momentum quantum number $\to$ indicates the shape of the orbital.

(3) Magnetic quantum number $\to$ indicates the orientation or position of the orbital.

(4) Spin quantum number $\to$ indicates the spin of the electron