The Structure of Matter: Review

electron

negatively charged, subatomic particle

neutron

neutral subatomic particle found in the nucleus of the atom

isotope

one of two or more atoms of the same element with different masses due to different numbers of neutrons

suspension

a heterogeneous mixture with relatively large particles dispersed in a fluid or gas that settle out fairly quickly

colloid

a heterogeneous mixture with small particles dispersed in another medium that are small enough to stay suspended but large enough to scatter light

heterogeneous mixture

a mixture that does not have the same ratio of components throughout the combination and therefore is not the same in terms of the concentration of the components everywhere in the sample

homogeneous mixture

a mixture with the same ratio of components throughout the combination

proton

positively charged, subatomic particle found in the nucleus of the atom

filtration

process of collecting solid particles of a suspension on a filter

distillation

separation of the components of a mixture based on boiling points

elements

substances with only one type of atom

compound

two or more elements that have chemically combined