Which element can have oxidation state from $4 $ to $6 $?
$Fe$
$Mg$
$Co$
$Cr$
Stainless steel does not rust because
The catalytic activity of the transition metal and their compound is due to their
All $Zn( +II)$ compounds are white because
A first row transition metal in its $+2$ oxidation state has a spin-only magnetic moment value of $3.86 \mathrm{BM}$ The atomic number of the metal is
In the ground state of cobalt atom $(Z = 27)$ there are ....... unpaired electrons and thus the atom is.......