Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Our platform provides a seamless experience for finding reliable answers from a knowledgeable network of professionals. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

Rank these transition metal ions in order of decreasing number of unpaired electrons.

a. Fe^3
b. Mn^4+
c. V3+
d. Ni^2+
e. Cu^+

Sagot :

Answer: The given transition metal ions in order of decreasing number of unpaired electrons are as follows.

[tex]Mn^{4+} > V^{3+} = Ni^{2+} > Fe^{3+} > Cu^{+}[/tex]

Explanation:

In atomic orbitals, the distribution of electrons of an atom is called electronic configuration.

The electronic configuration in terms of noble gases for the given elements are as follows.

  • Atomic number of Fe is 26.

[tex]Fe^{3+} - [Ar] 3d^{5}[/tex]

So, there is only 1 unpaired electron present in [tex]Fe^{3+}[/tex].

  • Atomic number of Mn is 25.

[tex]Mn^{4+} - [Ar]3d^{3}[/tex]

So, there are only 3 unpaired electrons present in [tex]Mn^{4+}[/tex].

  • Atomic number of V is 23.

[tex]V^{3+} - [Ar] 3d^{2}[/tex]

So, there are only 2 unpaired electrons present in [tex]V^{3+}[/tex].

  • Atomic number of Ni is 28.

[tex]Ni^{2+} - [Ar] 3d^{8}[/tex]

So, there will be 2 unpaired electrons present in [tex]Ni^{2+}[/tex].

  • Atomic number of Cu is 29.

[tex]Cu^{+} - [Ar] 3d^{10}[/tex]

So, there is no unpaired electron present in [tex]Cu^{+}[/tex].

Therefore, given transition metal ions in order of decreasing number of unpaired electrons are as follows.

[tex]Mn^{4+} > V^{3+} = Ni^{2+} > Fe^{3+} > Cu^{+}[/tex]

Thus, we can conclude that given transition metal ions in order of decreasing number of unpaired electrons are as follows.

[tex]Mn^{4+} > V^{3+} = Ni^{2+} > Fe^{3+} > Cu^{+}[/tex]

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.