Reactivity of halogens Student activity Play

Real gases Student activity Play

Relationship between the atomic structure and the position of elements in periods Animation Play

Relative abundance of isotopes and mass spectra Student activity Play

Relative atomic mass Class activity Play

Relative atomic mass Student activity Play

Relative atomic mass Animation Play

Relative atomic mass Student activity Play

Relative atomic mass Whiteboard exercise Play

Relative atomic mass Whiteboard presentation Play

Relative atomic mass and relative molecular mass Student activity Play

Relative atomic mass and relative molecular mass Animation Play

Relative atomic mass and relative molecular mass Whiteboard exercise Play

Relative atomic mass of magnesium Whiteboard exercise Play

Relative atomic masses of isotopes Chart Play

Roentgen spectra of elements – characteristic radiation Student activity Play

Roentgen spectra of elements – characteristic radiation Whiteboard exercise Play

Rutherford's atomic model Student activity Play

Rutherford’s atomic model Simulation Play

Rutherford’s atomic model Whiteboard exercise Play

Rutherford’s atomic model Animation Play

s-Block elements Class activity Play

s-Block elements Whiteboard presentation Play

Sodium chloride formation Animation Play

sp3 Hybridisation Student activity Play