These are all terms you need to understand, learn and USE!
    • matter
    • (energy) states of matter
    • liquid
    • solid
    • gas
    • plasma
    • phase transitions/ changes of state
    • substance
    • element
    • mixture
    • compound
    • molecule
    • lattice
    • atom
    • nucleus
    • shell
    • charged particle
    • proton
    • neutron
    • electron
    • electronic configuration
    • chemical bond
    • chemical formula
    • empirical formula
    • ion
    • isotope
    • the Periodic Table of Elements
    • atomic number
    • relative atomic mass
    • symbol
    • group
    • period
    • metals
    • non-metals
    • metalloids
    • noble/inert gases
    • reactivity
    • valences
    • valence electrons