The correct order of unpaired electrons present in d orbitals for elements $F e, T i, C r$ and $C o$ is :

Question

The correct order of unpaired electrons present in d orbitals elements Fe- Ti- Cr and Co is -Cr-Fe-Co-TiCr-Fe-Co-TiFe-Co-Cr-TiCr-Fe-Ti-Co

Toppr Admin · Accepted Answer

Cr-Ar-xA0-4s1-xA0-3d5-xA0- -xA0- -xA0- -xA0- -xA0-6 unpaired electronsFe-Ar-xA0-4s2-xA0-3d6-xA0- -xA0- -xA0- -xA0- 4-xA0-unpaired electronsCo-Ar-xA0-4s2-xA0-3d7-xA0- -xA0- -xA0- -xA0- 3-xA0-unpaired electronsTi-Ar-xA0-4s2-xA0-3d2-xA0- -xA0- -xA0- -xA0- -xA0-2-xA0-unpaired electronsCr-gt-Fe-gt-Co-gt-TiHence- option C is correct-

The correct order of unpaired electrons present in d orbitals for elements $F e, T i, C r$ and $C o$ is :
$C r > F e > C o > T i$
$C r = F e > C o > T i$
$F e > C o > C r > T i$
$C r = F e > T i > C o$

$C r = [A r] 4 s^{1} 3 d^{5};$ 6 unpaired electrons

$F e = [A r] 4 s^{2} 3 d^{6};$ 4 unpaired electrons

$C o = [A r] 4 s^{2} 3 d^{7};$ 3 unpaired electrons

$T i = [A r] 4 s^{2} 3 d^{2};$ 2 unpaired electrons

$C r > F e > C o > T i$

Hence, option $C$ is correct.

The correct order of unpaired electrons present in d orbitals for elements Fe, Ti, Cr and Co is :Cr>Fe>Co>TiCr=Fe>Co>TiFe>Co>Cr>TiCr=Fe>Ti>Co

Cr=[Ar] 4s1 3d5; 6 unpaired electronsFe=[Ar] 4s2 3d6; 4 unpaired electronsCo=[Ar] 4s2 3d7; 3 unpaired electronsTi=[Ar] 4s2 3d2; 2 unpaired electronsCr>Fe>Co>TiHence, option C is correct.

The correct order of unpaired electrons present in d orbitals for elements $F e, T i, C r$ and $C o$ is :
$C r > F e > C o > T i$
$C r = F e > C o > T i$
$F e > C o > C r > T i$
$C r = F e > T i > C o$

$C r = [A r] 4 s^{1} 3 d^{5};$ 6 unpaired electrons

$F e = [A r] 4 s^{2} 3 d^{6};$ 4 unpaired electrons

$C o = [A r] 4 s^{2} 3 d^{7};$ 3 unpaired electrons

$T i = [A r] 4 s^{2} 3 d^{2};$ 2 unpaired electrons

$C r > F e > C o > T i$

Hence, option $C$ is correct.