Term
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Definition
| abbreviations for chemical elements |
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Term
| Law of Constant Composition |
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Definition
| a given compound always contains elements in exactly the same proportion by mass |
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Term
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Definition
-atoms are made of elements
-all atoms with in an atom are idenitical
-one elements atoms are different from another elements atoms
-atoms of one element can combine with atoms of another to from a compound-a given compound has the same relative number and types of atoms
-atoms cannot be divided in a chemical change |
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Term
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Definition
| a substance made of two or more different elements joined together in a specific way |
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Definition
| expresses the number of each type of atom in each of the molecules that make up a compound |
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Definition
-negatively charged particle
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Term
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Definition
| -positively charged particle |
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Term
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Definition
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Term
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Definition
| a modern concept of the atom as having a dense center of positive charge surrounded by moving electrons |
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Term
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Definition
| the relative small dense center of positive charge in an atom |
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Definition
| atoms with the same number of protons but different numbers of neutrons |
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Definition
| the number of protons in the nucleus of a given ataom |
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Term
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Definition
| the total number of protons and neutrons in the nucleus of a given atom |
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Definition
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Definition
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Definition
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Definition
| metallic and nonmetallic properties |
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Definition
| generally do not react or combine with other elements |
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Term
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Definition
| generally do not react or combine with other elements |
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Term
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Definition
| the zero charge of an atom |
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Term
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Definition
| a charged atom that is created by loosing or adding electrons |
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Term
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Definition
+ ion
produced when electrons are lost |
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Term
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Definition
- ion
produced when electrons are gained |
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Term
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Definition
| results when a metal reacts with a nonmetal to form cations and anions |
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