Physical properties of halogens Whiteboard exercise Play

Polar and non-polar molecules Student activity Play

Polar and non-polar molecules Illustration Play

Polar molecules Animation Play

Position of elements in the periodic table Animation Play

Possible positions of two circles Animation Play

Practical use of atomic spectra Slideshow Play

Preparation of haloalkanes (2) Student activity Play

Preparing solutions of given concentrations Student activity Play

Preparing solutions of given concentrations Whiteboard exercise Play

Properties of elementary particles Student activity Play

Properties of elements Whiteboard exercise Play

Properties of solids Student activity Play

Properties of solids Whiteboard exercise Play

Radii of three circles Whiteboard exercise Play

Radioactive decay Student activity Play

Reaction yields Student activity Play

Reactivity of halogens Student activity Play

Reactivity of halogens Simulation Play

Reactivity of the 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 Animation Play

Relative atomic mass Class activity Play