The "spin-only" magnetic moment [ in units of Bohrmagneton, $(\mu _B )$ ] of $Ni^{2+}$ in aqueous solution would be (At. No. $Ni= 28)$
$6$
$1.73$
$2.84$
$4.90$
Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?
Explain on what factors the ionization enthalpies of elements having $d^{\mathrm{n}}$ configuration depends upon ?
Explain the variation in ionization enthalpies of transition elements in $3 d$ series.
Assertion : $SnI_4$ is an orange solid.
Reason : The colour arises due to charge transfer.
The transition metal ions responsible for colour in ruby and emerald are, respectively
The metal commonly present in brass and german silver is