what are quantum numbers? give the significance of each quantum number.
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Unit of mass, kilogram (kg): Kilogram is the SI unit of mass and is defined by taking the fixed value of the Planck constant. It is expressed as kg. m2. s-1. ... Unit of the amount of substance, mole (mol): Mole is the SI unit of amount of substance and is defined by the fixed value of Avogadro constant NA.
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Quantum number of the electrons are the number which used to indicate shell,subshell,orbital and spin of the electrons.
Types of QUANTUM NUMBER :-
- Principal quantum no.(n) {1,2,3…}
- Azimuthal or subsidiary qn no.(l) {0,1,…(n-1)}
- Magnetic qn no.(m) {-1….0….+1}
- Spin qn no.(+,-1/2)
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