Question

the quantum number which is equal for all the d electrons in an atom
a.s
b.l
c.m
d.n​

Answer 1

Answer:

d. n

Explanation:

n represents the no.of the shell .

so an atom would compulsorily have d electrons in the same shell so the n vallue remains same..

for example.,

scandium - valence electron :

${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{1}$

so valence electron is in d orbital

n = 3

Answer 2

Answer:

The quantum number that is equal for all the $d$ electrons in an atom is azimuthal quantum number, $l$. That is, option $(b)$.

Explanation:

The azimuthal quantum number, $l$ is the one of the quantum number. which indicates the shape and the angular momentum of an orbital.

Thus,

• For an orbital, the azimuthal quantum number is constant.
• For $d$ orbital, the quantum number, $l$ $= 2$. That is, for all d orbitals - $3d$, $4d$, $5d$ and so on, $l = 2$.

Therefore, azimuthal quantum number, $l$ is equal for all the $d$ electrons in an atom.