Chemistry - PERIODIC TABLE Question with Solution | TestHub

As we observe from left to right in a period, there is a gradual increase in ionization potential due to the increase in Nuclear charge.
From left to right, the elements will be $\mathrm{ }\mathrm{Ti}\left(22\right),\mathrm{ }\mathrm{Mn}\left(25\right),\mathrm{Ni}\left(28\right),\mathrm{Zn}\left(30\right)$ .
Hence, the correct order will be:
$\mathrm{Ti}<\mathrm{M}\mathrm{n}<\mathrm{Ni}<\mathrm{Z}\mathrm{n}.$