Question 44

Q44Multiple choice

Match the following rules with their statements : Rules Statements (i) Hund’s Rule

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(a) No two electrons in an atom can have the same set of four quantum numbers.

(c) Pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly (iii) Pauli Exclusion Principle occupied.

(b) Half-filled and completely filled orbitals have extra stablity. (ii) Aufbau Principle

(d) It is impossible to determine the exact position and exact momentum of a subatomic particle simultaneously. (iv) Heisenberg’s Uncertainty Principle (e) In the ground state of atoms, orbitals are filled in the order of their increasing energies.