In which pair of ions both are diamagnetic in nature?
$Fe^{+2}, Fe^{+3}$
$Hg_2^{ + 2},H{g^{ + 2}}$
$Cu^+, Cu^{+2}$
None
Assertion : Magnetic moment values of actinides are lesser than the theoretically predicted values.
Reason : Actinide elements are strongly paramagnetic.
Stainless steel contains ........... $\%$ $Cr$
Bell metal is an alloy of
Amongest following the lowest degree of paramagnetism per mole of the compound at $298 K$ will be shown by
The atomic radii from $Cr$ to $Cu$ is almost identical because of