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| 1. |
Explain quantum numbers |
| Answer» Quantum numbers: Quantum numbers are numbers that designate and distinguish various atomic orbitals and electrons present in an atom.Four quantum numbers are used to define the state of an electron completely, namely principal quantum number, azimuthal quantum number, magnetic quantum number and spin quantum number.Principal quantum number:Principal quantum number determines the energy shell in which an electron revolves around the nucleus.Principal quantum number is also known as the major energy level.Principal quantum number is denoted by the symbol n.Principal Quantum Number (n) = 1, 2, 3, …….\xa0 | |