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Question

Which quantum number signifies the sub-shells in an atom?


A
Principal quantum number 
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B
Azimuthal quantum number
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C
Magnetic quantum number
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D
Spin quantum number
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Solution

The correct option is A Azimuthal quantum number
  • One or more orbitals in the electron shell of an atom with the same energy level. Subshells have different shapes and are distinguished by their magnetic quantum number.
  • The azimuthal quantum number is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital.
  • Hence,option B is correct answer.

Chemistry

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