Which of the following options does not represent ground state electronic configuration of an atom?
1.
2.
3.
4.
Which pair of ions has the same electronic configuration?
1. | \(Cr^{3+}, Fe^{3+}\) | 2. | \(Fe^{3+}, Mn^{2+}\) |
3. | \(Fe^{3+}, Co^{3+}\) | 4. | \(Sc^{3+}, Cr^{3+}\) |
Match the following species with their corresponding ground state electronic configuration.
Atom/Ion | Electronic configuration | ||
A. | Cu | 1. | |
B. | Cu2+ | 2. | |
C. | Zn2+ | 3. | |
D. | Cr3+ | 4. | |
5. |
A | B | C | D | |
1. | 4 | 2 | 5 | 1 |
2. | 3 | 4 | 1 | 5 |
3. | 3 | 2 | 1 | 4 |
4. | 4 | 2 | 1 | 3 |
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 |
Match Column-I with Column-II and choose the appropriate option:
Column-I (Species) |
Column-II (Electronic Configuration) |
||
A. | \(Cr\) | (i). | \([Ar]3d^84s^0\) |
B. | \(Fe^{2+}\) | (ii). | \([Ar]3d^{10}4s^1\) |
C. | \(Ni^{2+}\) | (iii). | \([Ar]3d^64s^0\) |
D. | \(Cu\) | (iv). | \([Ar]3d^54s^1\) |
(v). | \([Ar]3d^64s^2\) |
Options: | A | B | C | D |
1. | iv | iii | i | ii |
2. | i | ii | iii | v |
3. | v | iv | iii | ii |
4. | iv | v | iii | ii |