The number of $d-$ electrons in $F{e^{2 + }}$ (at no. of $Fe = 26$) is not equal to that of the
$p - $ electrons in $Ne$ (at. no. $= 10$)
$s -$ electrons in $Mg$ (at. no. $= 12$)
$d - $ electrons in $Fe$
$p -$ electrons in $C{l^ - }$ (at. no. of $Cl = 17$)
While filling up of electrons in the atomic orbitals, the $4 s$ orbital is filled before the $3 d$ orbital but reverse happens during the ionisation of the atom. Explain why?
Write a note on interstitial compounds.
$\mathrm{E}^{\circ}$ of $\mathrm{Cu}$ is $+0.34 \mathrm{~V}$ while that of $\mathrm{Zn}$ is $-0.76 \mathrm{~V}$. Explain.
Which of the following is not true for transition metals