FUNDAMENTAL FORCES

 There are four fundamental forces in the universe, not three. They are:

1. Gravity: This force is responsible for the attraction between masses and is described by Einstein's theory of General Relativity.
2. Electromagnetic Force: This force is responsible for interactions between electrically charged particles and is described by classical electromagnetism.
3. Strong Nuclear Force: This force holds the nucleus of an atom together by binding protons and neutrons. It's described by the theory of quantum chromodynamics (QCD).
4. Weak Nuclear Force: This force is responsible for processes involving the decay of subatomic particles, such as beta decay. It's also described by a separate quantum theory.

As for particles, there are numerous fundamental particles in the Standard Model of particle physics, which is the current framework explaining particle interactions. Some of the fundamental particles include quarks, leptons (like electrons), gauge bosons (like photons and W/Z bosons), and the Higgs boson. These particles interact through the fundamental forces to give rise to the complex interactions we observe in the universe.