The element having greatest difference between its first and second ionization energies, is:
A.
$$Ca$$
B.
$$Sc$$
C.
$$Ba$$
D.
$$K$$
Answer :
$$K$$
Solution :
Alkali metals have high difference in the first and second ionisation energy as they achieve stable noble gas configuration after first ionisation.
Releted MCQ Question on Inorganic Chemistry >> Classification of Elements and Periodicity in Properties
Releted Question 1
The correct order of second ionisation potential of carbon, nitrogen, oxygen and fluorine is