Question

Ionization potential in a period is lowest for?
A. Halogens
B. Inert gases
C. Alkali metals
D. Alkaline earth elements

Answer 1

Hint:We know that this part belongs to the periodic properties. Salt metals have the most minimal ionization energy in every period and this is because they are having the biggest nuclear size in their individual period.

Complete answer:
Ionization energy increments coming in a period that starts at the very least for alkali metals and finishes at the most extreme for honorable gases. The alkali metals accompany the most minimal ionization energy in every period. It is because they have the biggest nuclear size in their periods. Also, the soluble base metals ionization energies will in general diminish bit by bit on going down the gathering in the occasional table. It has nothing to do with halogen.
Salt metals have the most minimal ionization energy in every period and this is because they are having the biggest nuclear size in their individual period. The valence electrons in enormous size iotas are held freely by the core and can be lost without any problem. The alkali metals have the most reduced first ionization energies in their separate times of the intermittent table given their low powerful atomic charge and the capacity to accomplish an honorable gas setup by losing only one electron. salt metals are bigger in size.
 So they have a less atomic fascination towards electrons and it is anything but difficult to eliminate the electron from the furthest shell so the soluble base metals have low I.P values. The nuclear size of the soluble base metal iota is enormous. In this way, the furthest electron is far away from the emphatically charged core. The valence shell electron can be effortlessly eliminated as the appealing power experienced by the valence electron is low. Subsequently, alkali metals have low ionization enthalpy.
 The correct answer is Option C.

Note:The valence shell electron can be effortlessly eliminated as the appealing power experienced by the valence electron is low. Subsequently, alkali metals have low ionization enthalpy.