# Particle Physics- Learn With Fun – Part II- The Standard Model and The Antimatter Concept

We left previously on The Standard Model. So let Start!!

# The Standard Model

The Standard Model is a standard in particle physics. It’s a theoretical picture that describes how the different fundamental particles are organized and how they interact with each other along with the different forces.

# What is in it?

Briefly it states that: The elementary particles are split up into two families, namely the quarks and the leptons. Both of these families consist of six particles, split into three generations, with the first generation being the lightest, and the third the heaviest. Furthermore, there are four different force carrying particles which lead to the interactions between particles.

# Not Clear?

The table below shows this all a little bit more clearly.

Standard Model

All particles come under these two categories: Quarks & Leptons.

# So, is everything in the world made up of quarks and leptons?

Well, not quite. Let we learn about AntiMatter!!

# What’s Antimatter?

An interesting thing that has been discovered about matter particles, is that each one has a corresponding antiparticle.
The term “anti” may be a bit decieving, as it is still real matter. The only difference between a particle and it’s antiparticle is that an antiparticle has the opposite electrical charge.

Think of it as a mirror image. In our experience left and right are the only things to reverse when looking in the mirror. Similarly, in the particle world, charge is what reverses when looking in the “mirror”. This has mass, spin, and most other (quarks have something called colour charge which is also changed in the “mirror”) properties the same.

In general, an antiparticle is the particles name with “anti” in front of it. For example, the antiparticle of the proton is the antiproton. An exception to this rule is the electron, whose antiparticle is known as the positron, not anti-electron.

# At the End

An interesting fact about antimatter is that All of the universe is made up of matter as opposed to antimatter. This is somewhat of a mystery.

Now We’re ready to go for Quarks in a few days.