Question

Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about the ionization energies of these elements? Na < K < Rb Na > K > Rb Rb < Na < K Na = K = Rb

Answer 1

The correct answer is Na > K > Rb.

Step-by-step explanation:

Just took the Plato quiz and got it correct.

Answer 2

Energy could be ranked as Rb>K>Na. Im pretty sure this is correct, good luck.