Question

What is the order of successive ionization enthalpies?

• A. $IE_{III} > IE_{II} > IE_{I}$
• B. $IE_{I} > IE_{II} > IE_{III}$
• C. $IE_{II} > IE_{I} > IE_{III}$
• D. $IE_{III} > IE_{I} > IE_{II}$

Answer 1

Answer: (A)

$IE_{III} > IE_{II} > IE_{I}$

Answer 2

: Third ionisation energy is higher than second ionisation energy which is higher than the first ionisation energy.