Atomic Structure

• The atomic structure

  • A — electrons
  • B — neutrons
  • C — protons
  • D — electric shells
  • B,C — nucleus

  
• An atom is the smallest particle of an element, that still has chemical properties
• Atoms are made up of three particles; Protons (P), Neutrons (N) & Electrons (E)
• Inside an atom is mostly empty space, but there are smaller subatomic particles inside those are the neutrons, protons and electrons.
• • Subatomic particle—- proton - neutron -electrons
  • Relative charge - positive(+) - no charge - negative (-)
  • Relative mass - 1 - 1 - 0.0005
• What charge does the nucleus of an atom have?

  overall positive
• Where is the vast majority of an atoms mass?

  in the nuclues
• Smallest / proton, atom, electron, neutron, molecule, nucleus/Biggest

  • electron , proton , neutron , nucleus , atom , molecule
• Must learn- A typical atoms has:

  • Mass of * 10 (-23) g
  • Radius of * 10 (-10) m