Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table Student activity Play

Electron configuration of an iron Animation Play

Electron configuration of sulphur Animation Play

Electron configuration of transition metal ions Student activity Play

Electron shells and subshells (1) Student activity Play

Electron spin. Pauli's exclusion principle Student activity Play

Electronegativity Student activity Play

Elemental analysis Illustration Play

Elements of Group 17 Class activity Play

Elements of Group 17 Whiteboard presentation Play

Empirical formulae and molecular formulae of compounds Student activity Play

Empirical, molecular and general formula Animation Play

Energy of dissolution reaction Glossary Play

Enlargement – the basic property Student activity Play

Enlarging the right-angled triangle – the basic property Simulation Play

Enlarging the square – the basic property Simulation Play

Enthalpy of hydration Student activity Play

Enzymatic reactions Whiteboard exercise Play

Enzymatic reactions Student activity Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion (1) Student activity Play

Equality of two ratios: proportion (2) Student activity Play

Exact values of trigonometric ratios Animation Play