Periodic trends (atomic radius, electronegativity, ionisation energy)

ChemistryAtomic Structure & Periodic TableAges 15–16

The first 36 elements of the periodic table are shaded or sized by atomic radius, Pauling electronegativity, first ionisation energy, or metallic/non-metallic character. Click an element to see its real data and a chart of the trend across its period or down its group; the trend's conclusion appears right below.