IB Chemistry - Key definitions

Relative Atomic Mass (Ar)

Mass Number (A)

Isotopes

Electronegativity

First Ionization Energy

Atomic Number (Z)

Relative Molecular Mass (Mr)

Exothermic Reaction

Endothermic Reaction

Standard Enthalpy Change of Reaction (ΔH⊖)

Average Bond Enthalpy

Rate of Reaction

Activation Energy (Ea)

Brønsted-Lowry Acid

Brønsted-Lowry Base

Lewis Acid

Lewis Base

Oxidation

Reduction

Oxidizing Agent

Reducing Agent