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

Bombardment of uranium with neutrons Animation Play

Determining the composition of a nucleus Animation Play

Determining the composition of atomic nuclei Student activity Play

Determining the composition of atomic nuclei Whiteboard exercise Play

Further subdivision of atoms Animation Play

Isotopes Simulation Play

Isotopes Student activity Play

Isotopes Whiteboard exercise Play

Isotopes of oxygen Whiteboard exercise Play

Mass number Student activity Play

Mass number Whiteboard exercise Play

Neutrons Student activity Play

Neutrons Chart Play

Neutrons Whiteboard exercise Play

Neutrons and protons Animation Play

Neutrons and protons Whiteboard exercise Play

Neutrons and protons Student activity Play

Slowing down of neutrons Animation Play

Symbols of isotopes Student activity Play

The atomic theory today Student activity Play

The description of the elements Whiteboard exercise Play

The main terms describing the structure of the atom Whiteboard exercise Play

The mass number Animation Play

Uranium Student activity Play