atoms
the smallest buildingblocks of matter
brittle
easily crumbled orshattered
compounds
substances madeof lattices or identical moleculeswith two or more types ofatoms
ductile
able to be stretchedto form a wire
elements
substances madeup of only one type of atom
lattice
grid-like structure of atoms
malleable
able to be hammered or bent intonew shapes
metals
substances that havea metallic shine, conduct heatand electricity, and can behammered into sheets anddrawn into wires
mixture
any combination of two ormore elements or compounds
molecule
a cluster of atoms
monatomic
describes elements thatconsist of single atoms
non-metals
substances that areusually dull (not shiny), do notconduct heat and electricity, andbreak or crumble
periodic table
a table thatshows all the known elements
properties
the characteristicsof a substance