Answer
Ionization energy is a periodic trend that generally increases when moving across a period from left to right and decreases when moving down a group. Nonmetals are located on the right side of the periodic table, while the metals are found on the left side. Nonmetals, therefore, are always to the right of the metals in the same period, suggesting that nonmetals have higher ionization energies.
Work Step by Step
Ionization energy is a periodic trend that generally increases when moving across a period from left to right and decreases when moving down a group. Nonmetals are located on the right side of the periodic table, while the metals are found on the left side. Nonmetals, therefore, are always to the right of the metals in the same period, suggesting that nonmetals have higher ionization energies.