Question

(a) What are quantum numbers? Which quantum number

determines shape and size of the orbital? (​

Answer 1

Answer:

A set of four quantum numbers which specify the energy, size, shape and orientation of an orbital about all the electrons present in an atom is called Quantum Numbers. To specify an orbital only three quantum numbers are required while to specify an electron all four quantum numbers are required. Four quantum number are n n, l l, ml m l, ms m s

Explanation: