Question

#7 chemistry a schoology 2025 12. explain what ionization energy is measuring and describe the pattern. draw arrows onto the periodic table to show the pattern. possible points: 5 12 of 13

Explanation:

Ionization energy is the energy required to remove an electron from a gaseous atom or ion. The general pattern is that ionization energy increases across a period (from left - to - right) due to increasing nuclear charge and decreasing atomic radius, which makes it harder to remove an electron. It decreases down a group because the outermost electrons are farther from the nucleus and more shielded, making them easier to remove. To draw arrows on the periodic table, draw arrows pointing from left to right across periods to show increasing ionization energy and arrows pointing down groups to show decreasing ionization energy.

Answer:

Ionization energy is the energy needed to remove an electron from a gaseous species. The pattern is an increase across a period and a decrease down a group. Arrows on the periodic table: across - period arrows point right, down - group arrows point down.