Question

1. as you move from left to right across a period in the periodic table, the ionization energy generally clear all o stays the same o decreases o increases

Explanation:

Ionization energy is the energy required to remove an electron from an atom. As you move from left - to - right across a period in the periodic table, the nuclear charge increases while the shielding effect remains relatively constant. This results in a stronger attraction between the nucleus and the outermost electrons, making it harder to remove an electron and thus increasing the ionization energy.

Answer:

Increases