Determining the composition of atomic nuclei Student activity Play

Determining the electron configuration of carbon Animation Play

Determining the electron configuration on the basis of the periodic table Student activity Play

Determining the electron configuration on the basis of the periodic table Whiteboard exercise Play

Determining the formula of a compound knowing the valence of its elements Student activity Play

Determining the formula of a compound knowing the valence of its elements Whiteboard exercise Play

Determining the formula of ammonium bromide Animation Play

Determining the formula of potassium carbonate Animation Play

Diatoms under the scanning electron microscope Slideshow Play

Diffraction of electrons – the Davisson-Germer experiment Student activity Play

Discovery of electron Animation Play

Discovery of elementary particles Whiteboard exercise Play

Discovery of elementary particles Student activity Play

Discovery of proton Animation Play

Dispersion forces (London forces) Student activity Play

Dissociation of acids Student activity Play

Doped semiconductors Student activity Play

Doped semiconductors Animation Play

Doped semiconductors Student activity Play

Doped semiconductors Whiteboard exercise Play

Doped semiconductors Animation Play

Doped semiconductors Whiteboard exercise Play

Early atomic theories Student activity Play

Early attempts to classify chemical elements (2) Student activity Play

Early models of an atom Animation Play