The energy levels in a solid body Animation Play

The first and second ionisation energies Animation Play

The first and second ionisation energies of the Group 2 elements Student activity Play

The law of periodicity and the properties of elements Animation Play

The octet rule Animation Play

The octet rule Animation Play

The physical properties of alkali metals Animation Play

The physical properties of the s-block metals (1) Student activity Play

The physical properties of the s-block metals (2) Student activity Play

The principal and azimuthal quantum numbers Animation Play

The reactivity of the s-block metals (2) Student activity Play

The structure of a reptile's egg Slideshow Play

The structure of hydrogen halides Animation Play

The structure of the periodic table Student activity Play

The structure of the periodic table – blocks Student activity Play

The structure of the periodic table – blocks Whiteboard exercise Play

The structure of the periodic table – groups Whiteboard exercise Play

The structure of the periodic table – groups Whiteboard exercise Play

The structure of the periodic table – groups (1) Student activity Play

The structure of the periodic table – groups (2) Student activity Play

The structure of the periodic table – periods Student activity Play

The unusual properties of beryllium Animation Play

The unusual properties of beryllium Student activity Play

The valence of elements in covalent and ionic compounds Whiteboard exercise Play

Trend in the reactivity of halogens Animation Play