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Short Tricks: Aufbau, Hund, Pauli Exclusion Video Lecture | Chemistry Class 11 - NEET
FAQs on Short Tricks: Aufbau, Hund, Pauli Exclusion Video Lecture - Chemistry Class 11 - NEET
| 1. What is the Aufbau principle? |  |
Ans. The Aufbau principle is a fundamental principle in chemistry that states that electrons fill atomic orbitals in order of increasing energy levels. This means that the lowest energy level orbitals are filled first before moving on to higher energy levels.
| 2. How does the Hund's rule apply to electron configuration? | |
Ans. Hund's rule states that for orbitals of equal energy, electrons will occupy separate orbitals before pairing up. This means that when filling electron orbitals, electrons will first occupy empty orbitals of the same energy level before pairing up in the same orbital.
| 3. What is the Pauli exclusion principle? | |
Ans. The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers. This means that each electron in an atom must have a unique combination of its principal quantum number, azimuthal quantum number, magnetic quantum number, and spin quantum number.
| 4. How does the Aufbau principle relate to the electron configuration of elements? | |
Ans. The Aufbau principle guides the filling of electrons in the atomic orbitals of elements. It helps determine the order in which electrons occupy energy levels and sublevels, providing a systematic way to determine the electron configuration of elements.
| 5. Why is understanding Hund's rule important in chemistry? | |
Ans. Understanding Hund's rule is crucial in chemistry as it helps explain the arrangement of electrons in atoms and the stability of electron configurations. It plays a significant role in predicting and understanding the properties of elements and their compounds.
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