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Classification of Matter
Transcript of Classification of Matter
made of atoms take up space (volume) and have mass
Each molecule is an element because it is made of only 1 type of atom.
made of more than 1 type of atom
more than 1 atom chemically bonded together
There are 92 types of atoms found naturally on earth. They combine to form all types of matter!
We know of 118 elements.
when atoms bond their properties change
Elements are atoms with different numbers of protons.
The atomic number is equal to the number of protons.
not evenly mixed
Evenly mixed. The SAME through out.
liquid that does the dissolving
Higher temperatures make dissolving easier for solid and liquids, but harder for gasses
lower freezing point
raise boiling points
in a molecule
each element starts with a capital letter
# of molecules
applies to the WHOLE thing
think 4 (CaCO3)
# of atoms
applies only to the element before it
Ex. Salad can be EASILY pulled apart because they are physically combined. The parts remain the same & nothing new is created.
will not dissolve
what is the solute
in hot chocolate?
cocoa in cold milk
Cocoa in hot milk
what is the solvent in hot chocolate?
water is the universal solvent
solute + solvent = solution
lower freezing point
ex. the Hydrogen & Oxygen that make up water
Can't be separated without a reaction so they are chemically combined
Are made of 1 type of atom.
This means that every atom in the substance has the SAME number of PROTONS.
The smallest unit of matter
The parts are called subatomic particles: protons, neutrons, electrons
Overall they are neutral even though subatomic particles may have charges
They are not ANY state of matter.
The electrons do NOT orbit like planets.