The letters n, l and m proposed by Bohr, Sommerfeld and Zeeman respectivelt for quantization of angular momentum in classical physics were later on obtained as the results of solution of Schrodinger wave equation based on quantum mechanics. The term n, l, m are named as principal quantum number, azimuthal quantum number and magnetic number respectively. The fourth quantum number i.e., spin quantum number (s) was given by Uhlenback on the basis of two spins of electrons. The first two quantum number also decides the nodes of an orbital. The numerical value Psi_(4,3,0) denotes

The letters n, l and m proposed by Bohr, Sommerfeld and Zeeman respect

1.	The letters n, l and m proposed by Bohr, Sommerfeld and Zeeman respectivelt for quantization of angular momentum in classical physics were later on obtained as the results of solution of Schrodinger wave equation based on quantum mechanics. The term n, l, m are named as principal quantum number, azimuthal quantum number and magnetic number respectively. The fourth quantum number i.e., spin quantum number (s) was given by Uhlenback on the basis of two spins of electrons. The first two quantum number also decides the nodes of an orbital. The numerical value Psi_(4,3,0) denotes
Answer» 3d-ORBITAL 4F-orbital 2s-orbital 4d-orbital Solution :`Psi` represent an orbital and `Psi_(4,3,0) ` has N= 4, l= 3 , i.e. , 4f - orbital