321634
Arrange the following elements in the increasing order of number of unpaired electrons in it. \({\rm{(I) Sc}}\,\,\,\,{\rm{(II) Cr}}\,\,{\rm{(III) V}}\,\,\,\,{\rm{(IV) Ti}}\,\,\,{\rm{(V) Mn}}\) Choose the correct answer from the options given below :
321635
Which one of the following has the maximum number of unpaired electrons ?
1 \(\mathrm{\mathrm{Mg}^{2+}}\)
2 \(\mathrm{\mathrm{Ti}^{3+}}\)
3 \(\mathrm{\mathrm{V}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
Number of unpaired electrons in different ions are as follows : \(\rm{\begin{aligned}& \mathrm{Mg}^{2+} \rightarrow 0 \\& \mathrm{Ti}^{3+} \rightarrow 0 \\& \mathrm{~V}^{3+} \rightarrow 2 \\& \mathrm{Fe}^{2+} \rightarrow 4 .\end{aligned}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS
321636
Which of the following has the maximum number of unpaired d-electrons?
1 \(\mathrm{N i^{3+}}\)
2 \(\mathrm{\mathrm{Cu}^{+}}\)
3 \(\mathrm{\mathrm{Zn}^{2+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
The electronic configuration of the ions are given below: \(\rm{N{i^{3 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^7}}\) \(\rm{C{u^ + } \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\rm{Z{n^{2 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\mathrm{F e^{2+} \rightarrow 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{0} 3 d^{6}}\)
321634
Arrange the following elements in the increasing order of number of unpaired electrons in it. \({\rm{(I) Sc}}\,\,\,\,{\rm{(II) Cr}}\,\,{\rm{(III) V}}\,\,\,\,{\rm{(IV) Ti}}\,\,\,{\rm{(V) Mn}}\) Choose the correct answer from the options given below :
321635
Which one of the following has the maximum number of unpaired electrons ?
1 \(\mathrm{\mathrm{Mg}^{2+}}\)
2 \(\mathrm{\mathrm{Ti}^{3+}}\)
3 \(\mathrm{\mathrm{V}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
Number of unpaired electrons in different ions are as follows : \(\rm{\begin{aligned}& \mathrm{Mg}^{2+} \rightarrow 0 \\& \mathrm{Ti}^{3+} \rightarrow 0 \\& \mathrm{~V}^{3+} \rightarrow 2 \\& \mathrm{Fe}^{2+} \rightarrow 4 .\end{aligned}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS
321636
Which of the following has the maximum number of unpaired d-electrons?
1 \(\mathrm{N i^{3+}}\)
2 \(\mathrm{\mathrm{Cu}^{+}}\)
3 \(\mathrm{\mathrm{Zn}^{2+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
The electronic configuration of the ions are given below: \(\rm{N{i^{3 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^7}}\) \(\rm{C{u^ + } \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\rm{Z{n^{2 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\mathrm{F e^{2+} \rightarrow 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{0} 3 d^{6}}\)
321634
Arrange the following elements in the increasing order of number of unpaired electrons in it. \({\rm{(I) Sc}}\,\,\,\,{\rm{(II) Cr}}\,\,{\rm{(III) V}}\,\,\,\,{\rm{(IV) Ti}}\,\,\,{\rm{(V) Mn}}\) Choose the correct answer from the options given below :
321635
Which one of the following has the maximum number of unpaired electrons ?
1 \(\mathrm{\mathrm{Mg}^{2+}}\)
2 \(\mathrm{\mathrm{Ti}^{3+}}\)
3 \(\mathrm{\mathrm{V}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
Number of unpaired electrons in different ions are as follows : \(\rm{\begin{aligned}& \mathrm{Mg}^{2+} \rightarrow 0 \\& \mathrm{Ti}^{3+} \rightarrow 0 \\& \mathrm{~V}^{3+} \rightarrow 2 \\& \mathrm{Fe}^{2+} \rightarrow 4 .\end{aligned}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS
321636
Which of the following has the maximum number of unpaired d-electrons?
1 \(\mathrm{N i^{3+}}\)
2 \(\mathrm{\mathrm{Cu}^{+}}\)
3 \(\mathrm{\mathrm{Zn}^{2+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
The electronic configuration of the ions are given below: \(\rm{N{i^{3 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^7}}\) \(\rm{C{u^ + } \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\rm{Z{n^{2 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\mathrm{F e^{2+} \rightarrow 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{0} 3 d^{6}}\)
321634
Arrange the following elements in the increasing order of number of unpaired electrons in it. \({\rm{(I) Sc}}\,\,\,\,{\rm{(II) Cr}}\,\,{\rm{(III) V}}\,\,\,\,{\rm{(IV) Ti}}\,\,\,{\rm{(V) Mn}}\) Choose the correct answer from the options given below :
321635
Which one of the following has the maximum number of unpaired electrons ?
1 \(\mathrm{\mathrm{Mg}^{2+}}\)
2 \(\mathrm{\mathrm{Ti}^{3+}}\)
3 \(\mathrm{\mathrm{V}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
Number of unpaired electrons in different ions are as follows : \(\rm{\begin{aligned}& \mathrm{Mg}^{2+} \rightarrow 0 \\& \mathrm{Ti}^{3+} \rightarrow 0 \\& \mathrm{~V}^{3+} \rightarrow 2 \\& \mathrm{Fe}^{2+} \rightarrow 4 .\end{aligned}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS
321636
Which of the following has the maximum number of unpaired d-electrons?
1 \(\mathrm{N i^{3+}}\)
2 \(\mathrm{\mathrm{Cu}^{+}}\)
3 \(\mathrm{\mathrm{Zn}^{2+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Explanation:
The electronic configuration of the ions are given below: \(\rm{N{i^{3 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^7}}\) \(\rm{C{u^ + } \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\rm{Z{n^{2 + }} \to 1{s^2}2{s^2}2{p^6}3{s^2}3{p^6}4{s^0}3{d^{10}}}\) \(\mathrm{F e^{2+} \rightarrow 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{0} 3 d^{6}}\)
