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  4. If the value of principal quantum number is 3, the total possible values for magnetic quantum number will be

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Q. If the value of principal quantum number is 3, the total possible values for magnetic quantum number will be

Structure of Atom

Solution:

For $ n = 3$, there are nine orbitals, i.e, , one $3s$, three $3p$ and five $3d$ orbitals so $m$ has $9$ values.