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7.6A,B Vocab
| Term | Definition |
|---|---|
| element | a substance that cannot be separated or broken down into simpler substances by chemical means |
| compound | a substance made up of atoms of two or more different elements joined by chemical bonds |
| chemical symbol | a one-, two-, or three-letter abbreviation of the name of an element |
| chemical formula | a combination of chemical symbols and numbers to represent a substance |
| atom | the smallest unit of an element that maintains the properties of that element |
| molecule | a group of atoms that are held together by chemical forces; a molecule is the smallest unit of a compound that keeps all the properties of that compound |
| periodic table | an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group |
| pure substance | a sample of matter, either a single element or a single compound, that has definite chemical and physical properties |
| structure | what something looks like or how it is made |
| function | what something's purpose is or what it does |