C & M Complete Unit Set
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21 terms
Terms | Definitions |
|---|---|
 ion | an atom with either a positive or negative charge |
| cation | atom that loses electrons and has a positive charge |
| anion | atom that gains electrons and has a negative charge |
| valence shell | the outermost shell of an atom |
| valence electron | the electrons found in the outermost shell of an atom, this is where the bonding takes place |
| ionic bond | type of bond where atoms give electrons to other atoms and there is an attraction between oppositely-charged ions |
| coefficient | a number in front of a chemical formula that tells you how many molecules of the compound you have |
| subscript | a number in the chemical formula that tells you how many atoms |
| chemical formula | tells you what atoms and how many of each are in one molecule of a specific compound |
| mixture | 2 or more elements combined physically |
| atom | the building block of matter |
| molecule | 2 or more atoms (same or different) joined together chemically |
| diatomic | 2 atoms of the same element bonded together |
| compound | a molecule that has two or more different elements bonded together chemically |
| heterogeneous | a mixture in which the parts are not combined completely or evenly |
| homogeneous | a mixture in which there is uniform distribution |
| solution | a solute dissolved in a solvent |
| solute | the substance in a solution that gets dissolved |
| solvent | the substance in a solution that does the dissolving |
| colloid | particles are lorger than in a solution but do not settle out |
| suspension | mixture where you can see the particles with the naked eye and they will settle out over time |
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