Which of the following statements regarding ionization energy of gas-phase atoms is correct? — Atomic Structure Chemistry Question

The first ionization energy of a group 1 element is always greater than the first ionization energy of the group 2 element in the same row of the periodic table.

In the second row of the periodic table, the first ionization energy is directly proportional to the atomic radius.

Among the elements from Al (Z = 13) to Ar (Z = 18), the first ionization energy increases monotonically with atomic number.