Question

Which property of an element is inversely related to its ionisation energy?

• A. Electronegativity
• B. Atomic mass
• C. Atomic radius
• D. Electron affinity

Answer 1

Answer:

C. Atomic radius

• Definition: Ionization energy is the minimum energy required to remove an electron from a gaseous atom or ion. • Trends in the Periodic Table: Ionization energy generally increases across a period (from left to right) and decreases down a group (from top to bottom).