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Definition
| anything with mass that takes up space |
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| the smallest unit of a pure substance that still has the properties of the substance (units that make up matter) |
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Definition
| the center of an atom, the atoms brain |
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Definition
| a part of an atom with a positive charge, usually found in the nucleus |
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Definition
| a part of an atom with no charge (neutral), found in the nucleus |
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Definition
| a part of an atom with a negative charge, found surrounding the nucleus |
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Definition
| the number on the periodic table of elements that tells you how many proton are in an element. |
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Definition
| atoms with the same number of protons but a different number of nuetrons |
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Definition
| a pure substance made up of only one type of atom, are not man made |
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Term
| periodic table of elements |
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Definition
| a chart that contains all of the elements that are known and arranges them in order according to their atomic number |
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Definition
| there are 4. solid, liquid, gas, and plasma |
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Definition
| a substance formed from two or more elements |
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Definition
| used to measure how strong or weak an acid or base is |
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Definition
| one or more substances combined together (usually you can see the parts) |
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