Fundamental ideas

Fundamental ideas

1. Atomic Structure

   • The nucleus contains protons and neutrons
     • protons are positive
     • and neutrons negative
   • key words
     • Proton
     • neutron
     • atomic number
     • mass number
   • all elements contain the same number of protons called the atomic number

2. Atoms, elements and compounds

   • Keywords
     • Element
     • Atom
     • group
     • Nucleus
     • electron
     • compound
   • elements
     • ...are made up of atoms
       • with a tiny nulceus surronded by electrons
       • when atoms join with atoms they make compounds
     • are arranged in groups on the periodic table