A diagram of the formation of carbon-14 and its cycle in the atmosphere Illustration Play

A proof for rapid exchange of hydrogen atoms in hydroxyl groups Slideshow Play

A thickness measuring device Animation Play

Abundance of chemical elements in nature Student activity Play

Abundance of elements in nature Slideshow Play

Actinium series Illustration Play

Actinium series Chart Play

Addition of bromine to alkenes Animation Play

Addition of elements to alkenes Student activity Play

Addition reactions in alkenes Animation Play

Addition reactions in alkenes – reaction with bromine Simulation Play

Addition reactions in alkenes – reaction with bromine Student activity Play

Alkenes Class activity Play

Alkenes Whiteboard presentation Play

Alpha decay Animation Play

Alpha decay Whiteboard exercise Play

Alpha radiation Animation Play

Antimatter Animation Play

Application of bromine Slideshow Play

Application of radioactive isotopes Whiteboard exercise Play

Application of radioactive isotopes Student activity Play

Application of radioactivity Class activity Play

Application of radioactivity Whiteboard presentation Play

Are all atoms of the same element identical? Student activity Play

Arrangement of chemical elements in the periodic table Student activity Play