Radioactivity

Radioactivity is a property of some elements where the nucleus breaks down and turns into smaller parts to release energy

Articles that Radioactivity Appeared in...

States of Matter

States of matter are the different forms we find elements, compounds and mixtures in the periodic table as solids liquids and gases.

Radioactivity and the Decay of Nuclei

Radioactivity is a property of a number of elements in the periodic table where their nuclei break down and release particles such as alpha, beta and gamma particles.

The History of the Atomic Model: Chadwick and the Neutron

By the 1930’s the atom consisted of a proton as a positive area of charge and electrons orbiting it but there was still a piece missing. It was not until 1932 that James Chadwick discovered a particle with the same mass of a proton but no overall charge, the neutron.