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elements
key definitions
| Question | Answer |
|---|---|
| atom | smallest part of an element that still has the properties of the element |
| element | a simple substance that cannot be split up into a simpler substance by chemical means |
| compound | two or more elements chemically combined |
| molecule | smallest part of an element or compound that can exist independently |
| mixture | two or more different substances mingled with each other but not chemically combined |