Number of unpaired electrons in $M{n^{2 + }}$ is
$3$
$5$
$4$
$1$
Which of the following has highest paramagnetic character
German silver is an alloy of $Cu$ with
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.
Due to covalent bonding, the transitional metals are
The number of unpaired electrons in $M{n^{ + 3}}$ is