Fundamental Constituents of Matter

Matter is composed of different types of atoms.

Atoms consist of a nucleus and an electron cloud.

Nucleus –

• Protons –
  • positive charge
  • consist of 2 up quarks and 1 down quark.
• Neutrons –
  • neutral charged
  • consist of 2 down quarks and 1 up quark

Electron Cloud –

• Electrons –
  • negative charge

Elementary Particles –

• Smallest unit of matter that cannot be further broken down into smaller structures
• Quarks (6 types)
• Leptons (6 types)