Question

The total value of the magnetic quantum number are
(a) 2n
(b) 21
(c) 2n + 1
(d) 2l+ 1​

Answer 1

Answer :

★ Magnetic orbital quantum number 'm' gives information about the spatial orientation of the orbital with respect to standard set of co-ordinate axis. For any sub-shell (defined by 'l' value) 2l + 1 values of m are possible and these values are from -l to +l.

∴ (C) is the correct answer.

Additional Information :

• Azimuthal quantum number 'l' is also known as orbital angular momentum which defines the three dimensional shape of the orbital. For a given value of n, l = 0 to n - 1.
• Principal quantum number 'n' determines the size and to large extent the energy of the orbital. It also identifies the shell namely, K, L, M, N etc$.$
• Spin quantum number 's' refers to orientation of the spin of the electron i.e., clockwise or anti-clockwise. For a given value of m, s = +1/2 and -1/2

Answer 2

Answer:

(d) 2L+1

Values of Magnetic quantum number(m) lies between -L ,0, +L.

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Hope it helps you