1. Structure of an Atom

2. The three main parts of an atom:
Proton
Neutron
Electron

4. Nucleus Proton ______________ charged particles
Central part of an __________
Composed of _________ and ___________
Proton
______________ charged particles
Found in the atomic nucleus

5. Neutron Electron ____________ particles Found in the atomic nucleus
___________ charged particles
__________ the nucleus

6. What are protons and neutrons made of?
Quarks!
Believed to be one of the basic building blocks of matter.
Three families of quarks are known to exist. Each family contains two quarks.
The first family consists of Up and Down quarks, the quarks that join together to form protons and neutrons.
The second family consists of Strange and Charm quarks and only exist at high energies.
The third family consists of Top and Bottom quarks and only exist at very high energies.