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atom smallest particle- "indivisible"
proton positively charged particle with 1 amu in nucleus
neutron no-charge particle with 1 amu in nucleus
electron negatively charged particle with small mass found in energy levels around nucleus
atomic number the number of protons in an atom
atomic mass the total mass of an atom (protons and neutrons)
element a pure substance that cannot be separated into a simpler substanct
mixture 2 or more substance physically combined-- no chemical bond was formed
compound 2 or more substance combined to form a new substance -- chemically bonded
heterogenous a mixture that looks "different"
homogenous a mixture that looks "the same"
solution homogenous mixture where the particles are uniform
colloid a homogenous mixture where the particles are uniform, but, larger (blood, milk, mayo)
suspension a heterogenous mixture where you can see the particles through-out the mixture
Created by: strong