The stability of $Cu ^{2+}$ is more than $Cu ^{+}$salts in aqueous solution due to -
second ionisation enthalpy.
first ionisation enthalpy.
enthalpy of atomization.
hydration energy.
The decrease in atomic volume from $Cr$ to $Cu$ is very negligible because
The spin only magnetic moment value of the ion among $\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}$ and $\mathrm{Cr}^{2+}$, that acts as strong oxidising agent in aqueous solution is .......... BM (Near integer).
(Given atomic numbers: $\mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}: 24$, Co: $27$)
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration
How would you account for the irregular variation of ionisation enthalpies (first and second) in the first series of the transition elements?
Steel differs from pig iron and wrought iron in that it contains