Question

Assertion: Each orbital is designated by three quantum numbers labelled as n, l and m . Reason: ‘n’ is a positive integer with value of n = 1,2,3.​

Answer 1

Answer:

both assertion and reason are correct

Explanation:

and reason is correct explained

Answer 2

Assertion and reason both are correct statements and reason is not the correct explanation for assertion.

Explanation:

Each orbital is designated by three quantum numbers labelled as n, l and m .

• Principal Quantum Number(n):

Principal quantum numbers are denoted by the symbol ‘n’. They designate the principal electron shell of the atom.

‘n’ is a positive integer with value of n = 1,2,3.​

• Azimuthal Quantum Number(l):

Azimuthal Quantum number are denoted by the symbol ‘l’. They describe the shape of a given orbital and its value is equal to the total number of angular nodes in the orbital.

• Magnetic Quantum Number(m):

Magnetic Quantum Number are denoted by the symbol ‘m’. They determine the total number of orbitals in a subshell and the orientation of these orbitals.

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