Select the element that has a smaller fourth ionization energy from the following pair: Si or P

Determine the process that will require the greatest amount of energy.

A. Cs(g) → Cs⁺(g) + e^–

B. Rb(g) → Rb⁺(g) + e^–

C. Be(g) → Be⁺(g) + e^–

D. Cs⁺(g) → Cs²⁺(g) + e^–

E. Li(g) → Li⁺(g) + e^–

What does the graph say about the ionization energy of sulfur?

Which of the following elements has the lowest value of second ionization energy?

Consider this set of ionization energies.

IE₁ = 578 kJ/mol

IE₂ = 1979 kJ/mol

IE₃ = 2963 kJ/mol

IE₄ = 6180 kJ/mol

To which fourth-period element do these ionization values belong?