MolSynapsequestion bank

MolSynapse / Question bank / Atomic Structure / Quantum numbers, orbitals, nodes, electronic configuration

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3as218

Which of the following ground-state species have a spin-only magnetic moment between $4.5$ and $6.0$ BM?

ACr atom
B $Mn X^{2 +}$
C $Fe X^{2 +}$
D $Co X^{2 +}$

Answer: B, C

Cr atom (6 unpaired):

48 = 6.93

BM, too high.

Mn X^{2 +}

(5):

35 = 5.92

BM.

Fe X^{2 +}

(4):

24 = 4.90

BM.

Co X^{2 +}

(3):

15 = 3.87

BM, too low. So B and C.

Practice Atomic Structure More on Quantum numbers, orbitals, nodes, electronic configuration

Previous questionNext question

More questions on Quantum numbers, orbitals, nodes, electronic configuration

Find the number of orbitals that contain at least one electron (singly or doubly occupied) in a ground-state molybdenum atom (Z=42). JEE Advanced level
8.4 g of Fe^2+ ions (take molar mass 56 g mol^-1 and N_A=6.022x10^23) is considered. The total number of unpaired electrons in the sample, i... JEE Advanced level
Count exchanges as the number of pairs of electrons with the same spin within the d subshell in its maximum-multiplicity arrangement. Which ... JEE Advanced level
Consider the electronic states of a carbon atom (Z=6). Which statements are correct? JEE Advanced level
Which of the following ground-state ions are paramagnetic? JEE Advanced level