24. which list arranges the elements na, li, k, rb and cs in order of increasing ionization energy (from…

24. which list arranges the elements na, li, k, rb and cs in order of increasing ionization energy (from left to right in the answer choices)? o cs, rb, k, na, li o li, na, k, rb, cs o cs, li, na, k, rb o na, li, k, rb, cs
Answer
Answer:
Cs, Rb, K, Na, Li
Explanation:
Step1: Recall ionization - energy trend
Ionization energy decreases down a group.
Step2: Locate elements in group
Na, Li, K, Rb, Cs are in Group 1.
Step3: Arrange in increasing order
As we go down Group 1, ionization energy decreases. So the order is Cs < Rb < K < Na < Li for increasing ionization energy.