Introduction to Radioactivity

While most atoms are stable, some are radioactive, which means that they have a tendency to undergo spontaneous nuclear decay. The decay of radioactive atoms generally results in the emission of particles and/or energy.

But what makes an atom unstable?

Quarks are the basic building blocks for protons and neutrons. There are six types of quarks: up, down, charm, strange, top, and bottom.

Scientists often refer to these different quarks as "flavors".

Many texts often explain that the difference between protons and neutrons can be found in the quarks they are made of:

Protons are made of 3 quarks (2 up and 1 down)

Neutrons are made of 3 quarls (2 down and 1 up)

https://www.youtube.com/watch?v=LraNu_78sCw

Large amounts of energy are stored within the atom between the forces that hold together the nucleus of the atom.

According to the Theory or Relativity, E=mc², matter can be converted into energy. We can observe this during the nuclear reactions of radioactive materials.

In this mini-unit, you will define radioactivity and explore the different types of nuclear radiation. You will investigate how radiation impacts our every day lives and determine whether the negative effects of radiations outweigh the positive benefits.