Question

20.Principal ,azimuthal and magnetic quantum numbers are respectively related to.

a.Size, orientation and shape

b.Size, shape and orientation

c.Shape, size and orientation

d.none of these.​

Answer 1

Answer:

Principal, azimuthal and magnetic quantum numbers are respectively related to size,shape and orientation.

Principal quantum number gives the average distance of the electron from the nucleus.It corresponds to the principal energy level to which the electron belongs.

Azimuthal quantum number denotes the sub shell (orbital) to which the electron belongs and also determines the shape of the orbital and the energy associated with the angular momentum of the electron.

Magnetic quantum number determines the preferred orientations of orbitals in space.

Answer 2

Correct answer is Option (b) Size, shape and orientation

Principal,azimuthal and magnetic quantum numbers are respectively related to Size, shape and orientation

Explanation:

• Quantum numbers describe the position of an electron in an atom.
• There are four quantum numbers that define the position of electrons.They are as follows -

Principal quantum number (n) has the value n-1,2,3..

Azimuthal quantum number (l)= 0,1,2,3...

Magnetic quantum number (m) = -l,0,+l

Spin quantum number (s) =+1/2,-1/2