Constructing the graph of the tangent function Animation Play

d- and f-block elements Animation Play

Description of oscillations Student activity Play

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

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

Dmitri Mendeleev and the first periodic table Animation Play

Do alcohols have acidic properties? Student activity Play

Early attempts to classify chemical elements (1) Student activity Play

Electron affinity Animation Play

Electron configuration Student activity Play

Electron configuration and periodic trends of transition elements Interactive lesson Play

Electron configuration and periodic trends of transition elements Whiteboard presentation Play

Electron configuration and the periodic table Student activity Play

Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table Whiteboard exercise Play

Electron configuration and the periodic table (1) Student activity Play

Electron configuration and the periodic table (2) Student activity Play

Electron configuration of atoms Interactive lesson Play

Electron configuration of atoms Student activity Play

Electron configuration of atoms Whiteboard presentation Play

Electron configuration of halogens Animation Play

Electron configuration of s-block elements Animation Play

Electron configuration of sulfur, S Whiteboard exercise Play

Electron configuration of the s-block elements Whiteboard exercise Play