In the ground state of cobalt atom $(Z = 27)$ there are ....... unpaired electrons and thus the atom is.......
$2$, diamagnetic
$2$, paramagnetic
$3$, diamagnetic
$3$, paramagnetic
Transition metal with low oxidation number will act as
The spin-only magnetic moment value of $M ^{3+}$ ion (in gaseous state) from the pairs $Cr ^{3+} / Cr ^{2+}$, $Mn ^{3+} / Mn ^{2}, Fe ^{3+} / Fe ^{2+}$ and $Co ^{3+} / Co ^{2+}$ that has negative standard electrode potential, is $B.M...........$ [Nearest integer]
In which pair of ions both are diamagnetic in nature?
$Cu(CN)_4^{2 - }$ is colourless as it absorbs light in
The term platforming is