Which has the maximum ferromagnetic character
$Fe$
$Co$
$Ni$
$Pt$
$Sc\, (Z = 21)$ is a transition element but $Zn\, (Z = 30)$ is not because
Chloride of which of the following elements will be coloured
$Fe,$ $Co$ and $Ni$ have valuable catalytic properties in process involving
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration
Transition elements show high melting points. Why ?