NEET > Chemistry Class 11 > Short Tricks: Quantum Numbers
Short Tricks: Quantum Numbers Video Lecture - Chemistry Class 11 - NEET
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FAQs on Short Tricks: Quantum Numbers Video Lecture - Chemistry Class 11 - NEET
| 1. What are quantum numbers in physics? |  |
Ans. Quantum numbers are values that describe the properties of an electron in an atom. They specify the energy, angular momentum, magnetic moment, and orientation of the electron within an atom's electron cloud.
| 2. How many quantum numbers are there? | |
Ans. There are four quantum numbers: the principal quantum number (n), the azimuthal quantum number (l), the magnetic quantum number (ml), and the spin quantum number (ms). Each quantum number provides specific information about an electron's characteristics.
| 3. What is the principal quantum number? | |
Ans. The principal quantum number (n) determines the energy level or shell in which an electron resides. It can have integer values starting from 1 and increases as the distance from the nucleus increases. Higher values of n indicate higher energy levels.
| 4. How does the azimuthal quantum number determine the shape of an orbital? | |
Ans. The azimuthal quantum number (l) determines the shape of an orbital and can have values ranging from 0 to (n-1), where n is the principal quantum number. It is associated with the subshells and describes the orbital's angular momentum and shape. For example, l=0 corresponds to an s orbital, l=1 to a p orbital, l=2 to a d orbital, and so on.
| 5. What is the significance of the spin quantum number? | |
Ans. The spin quantum number (ms) describes the spin orientation of an electron within an orbital. It can have values of +1/2 or -1/2, indicating the two possible spin states of an electron. The spin quantum number is essential for understanding electron behavior and their interactions with magnetic fields.
Video Description: Short Tricks: Quantum Numbers for NEET 2023 is part of Chemistry Class 11 preparation.
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