PAULLI’S EXCLUSION PRINCIPLE, EXPLANATION, Electron while moving around the nucleus also have another kind of revolutions, HUND’S RULE
The arrows shoe the filling of electrons. Hence the order comes for filling of electron is similar as derived from (n + l) value 15, 25, 2p, 35, 3p, 45, 3d, 4p, 55, 4d, 5p,65, 4f, 5d, 6p, 73, 5f, 6d, 7p, 6f, 7d and 7f. RULE 2: PAULLI’S EXCLUSION PRINCIPLE An orbital cannot hold more the two electrons. In case of two electrons one orbital, both the electrons must have opposite spin which is also called pauli spin. EXPLANATION: Electron while moving around the nucleus also have another kind of revolutions about its axis which is called spin of electron. Spin is related with magnetic properties of an element. In an orbital two electrons with same spin with procedure such an unstable system that similar magnetic line of force repeat each other and make this combination impossible. In case of opposite spin, on...