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key words
| Term | Definition |
|---|---|
| atom | basic bilding blocks for matter |
| element | pure substance |
| nucules | senter of a cell |
| proton | in the center of a carobn atom |
| elctron | subatomaic particals |
| atomic number | describes the number of protons in the nucules of an atom |
| chemical simble | code thats one or two letters to descibe a elament |
| pure substance | same substance for elaments |
| compound | a pure substance that combines two or more elements |
| molocule | smalest compound |
| chemical formula | uses cemical simbles to create a formula |
| subscript | a smail number to tell the number of atoms in a formula |
| mixture | forms when tow or more combine cemicly |