Table of isotopes Animation Play

Temperature of the atmosphere Simulation Play

The arrangement of chemical elements in the periodic table Animation Play

The arrangement of chemical elements in the periodic table Whiteboard exercise Play

The arrangement of electrons in an atom Whiteboard exercise Play

The arrangement of electrons in an atom Student activity Play

The atomic masses of chemical elements in the periodic table Animation Play

The atomic theory today Student activity Play

The Bohr model of the atom Student activity Play

The Bohr model of the atom Whiteboard presentation Play

The Bohr model of the atom Class activity Play

The Bohr model of the atom Whiteboard exercise Play

The discovery of the electron and Thomson's model of the atom Student activity Play

The Doppler effect Whiteboard exercise Play

The Doppler effect Student activity Play

The electron configuration of an atom Class activity Play

The electron configuration of an atom and its position in the periodic table Whiteboard exercise Play

The electron configuration of an atom and its position in the periodic table Student activity Play

The electron configuration of an element and its position in the periodic table Animation Play

The electronegativity concept Illustration Play

The electronegativity concept Student activity Play

The elements of life Chart Play

The energy required for the extraction Whiteboard exercise Play

The future of the Universe Whiteboard exercise Play

The future of the Universe Student activity Play