Match the following List-I List-II (a) Coloured ion (p) Cu^+ (b) μ=1.73 B . M

step 1 Match the following list. List 1 contains ions and list 2 contains colours. Copper ions, nickel

Match the following List-I List-II (a) Coloured ion ...

Match the following \begin{tabular}{ll} \hline List-I & List-II \\ \hline (a) Coloured ion & (p) $\mathrm{Cu}^{+}$ \\ (b) $\mu=1.73 \mathrm{~B} . \mathrm{M}$ & (q) $\mathrm{Cu}^{2+}$ \\ (c) $\mathrm{d}^{10}$ configuration & (r) $\mathrm{Fe}^{2+}$ \\ (d) More than 3 un-paired electrons & (s) $\mathrm{Mn}^{2+}$ \\ \hline \end{tabular}

Match the following
\begin{tabular}{ll}
\hline List-I & List-II \\
\hline (a) Coloured ion & (p) $\mathrm{Cu}^{+}$ \\
(b) $\mu=1.73 \mathrm{~B} . \mathrm{M}$ & (q) $\mathrm{Cu}^{2+}$ \\
(c) $\mathrm{d}^{10}$ configuration & (r) $\mathrm{Fe}^{2+}$ \\
(d) More than 3 un-paired electrons & (s) $\mathrm{Mn}^{2+}$ \\
\hline
\end{tabular}

Key Concepts

Paramagnetism and the Role of Unpaired Electrons

Paramagnetism is the property of a substance to be attracted to an external magnetic field, which arises from the presence of one or more unpaired electrons. The number and distribution of these unpaired electrons, derived from the specific electron configuration, are responsible for the paramagnetic behavior observed in many transition metal compounds.

Electronic Transitions in Transition Metal Ions

This concept explains how the absorption of visible light by electrons in the d orbitals leads to the characteristic colors observed in many transition metal compounds. The specific wavelengths of light absorbed correspond to the energy differences between electronic states, and these transitions are highly influenced by the ligand environment around the metal ion.

Magnetic Moment and Unpaired Electrons

Magnetic moment is a quantitative measure of the magnetic strength of a species, often evaluated in Bohr magnetons (BM). It directly relates to the number of unpaired electrons present in an ion or complex. A higher count of unpaired electrons typically results in a greater magnetic moment, which is crucial in identifying and understanding the magnetic properties of a substance.

Electron Configuration in Transition Metals

This concept involves the arrangement of electrons in the orbitals, particularly the d orbitals, of transition metal ions. Electron configurations, such as a filled d^10 arrangement, determine many of the physical and chemical properties of the metal, including its color, magnetic behavior, and reactivity in forming complexes.

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