- 1(current)
Q. No.Match the ensuing rules with the corresponding statements:
| Rules | Statements | ||
| A. | Hund’s Rule | 1. | No two electrons in an atom can have the same set of four quantum numbers. |
| B. | Aufbau Principle | 2. | Half-filled and completely filled orbitals have extra stability. |
| C. | Pauli's Exclusion Principle | 3. | Pairing of electrons in the orbitals belonging to the same subshell does not take place until each orbital is singly occupied. |
| D. | Heisenberg’s Uncertainty Principle | 4. | It is impossible to determine the exact position and exact momentum of a subatomic particle simultaneously. |
| 5. | In the ground state of atoms, orbitals are filled in the order of their increasing energies. |
| A | B | C | D | |
| 1. | 3 | 5 | 1 | 2 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 3 | 5 | 1 | 4 |
| 4. | 4 | 5 | 3 | 2 |
Subtopic: Pauli's Exclusion Principle & Hund's Rule |
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