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1matter flash cards
flash cards on; atom, molecule and matter
Term | Definition |
---|---|
matter | anything that has mass and takes up space |
molecule | a group of one or more atoms bonded together |
atom | the basic building block of matter |
element | one or more atoms of the same kind (bonded together) |
compound | two or more different atoms bonded together |
pure substance | a substance made up of one type of matter (it can be an element or compound) and it has a constant composition. can't be separated physically |
mixture | a substance made up of multiple types of matter and it had a variable composition can be separated physically |
homogeneous mixture | a mixture where the particles are evenly distributed |
heterogeneous mixture | a mixture where the particles are not evenly distributed |
solution | a mixture containing atoms, ions, or molecules fully dissolved |
colloid | a mixture containing mid-size particles that do not settle out |
suspension | a mixture containing particles that settle out if left undisturbed |
tyndall effect | dispersed colloid particles scatter light allowing us to differentiate colloids and solutions |