Atom

• Consists of several types of particles
  • A number of which have mass and an electric charge
• Nucleus contains protons
• Outside of the nucleus we have electrons
• Electrically neutral in its normal state
• Each type of atom has its own unique pattern of electron orbits
  • No two sets of orbits are exactly alike

Atomic Nucleus

• Strong nuclear force
  • Holds Particles particles together
  • Only capable of acting over distances about the size of the atomic nucleus
  • Attractive force
  • Stronger than the electrical force

Physics