please answer this asap. will give thumbs up

Question 1 (1 point) When the ionic radius of a Mg2+ ion is compared with that of a Nation, the following is observed: O Mg2+ radius = Nat radius Mg2+ radius Nat radius Question 2 (1 point) Explain why the first ionization energy of aluminum is expected to be lower than that of magnesium? Question 3 (1 point) The radius of a xenon atom is smaller than that of a cesium atom primarily because: Xenon has one fewer proton in its nucleus so electron-nucleus attraction forces in xenon are weaker. The valence electron in cesium penetrates more closely to the nucleus than does the valence electrons of xenon. The 6s valence orbital in cesium is a physically bigger orbital than the 5p valence orbital in xenon because the principal quantum has increased. In any shell, the p orbitals is smaller than the sorbital