Which of the following has '$6$' unpaired $f-$electrons ?
$Tm^{+3} (Z = 69)$
$Nd^{+3} (Z = 60)$
$Dy^{+3} (Z = 66)$
$Tb^{+3} (Z = 65)$
Discuss the magnetic properties of transition elements.
Transition metal with low oxidation number will act as
The ${E^\Theta }\,\left( {{M^{2 + }}/M} \right)$ value for copper is positive $(+0.34 \,V ) .$ What is possible reason for this? (Hint: consider its high $\Delta_{ a } H^{\theta}$ and low $\Delta_{ hyd } H^{\theta}$ )
Chloride of which of the following element is coloured
The compound which does not show paramagnetism is :-