(a) What is radial probability distribution curve ? Draw radial probability distribution curves for 1s and 2s orbitals.
(b) Discuss the similarities and difference between 1s and 2s orbitals.
(c ) How many nodes are present in 1s and 2s orbitals ?

Explanation

`1s^2 2s^2 2p^6 3s^2 3p^5, 1s^2 2s^2 2p^6 3s^2 3p^6 3d^5 4s^1, 1s^2 2s^2 2p^6 4s^1 3d^5, 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^(10) 4p^5`.