The ionization potential of noble gas is- A. Maximum in a period B. Minimum in a period C. Maximum or minimum in a period D. None of these

The correct answer is: B. Minimum in a period

The ionization potential of an atom is the amount of energy required to remove an electron from the atom. The ionization potential of a noble gas is the lowest in a period because noble gases have a full valence shell of electrons. This means that they are very stable and do not easily lose electrons.

Option A is incorrect because the ionization potential of a noble gas is not the maximum in a period. The ionization potential of a noble gas is the lowest in a period.

Option C is incorrect because the ionization potential of a noble gas is not the maximum or minimum in a period. The ionization potential of a noble gas is the lowest in a period.

Option D is incorrect because the ionization potential of a noble gas is not none of these. The ionization potential of a noble gas is the lowest in a period.