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9 Cards in this Set
- Front
- Back
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Elements |
A pure substance composed of atoms of only one mind |
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Isotopes |
Atoms of the same element whose nuclei contain a different # of neurons |
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Atomic weights |
Am average of the different atomic masses and proportions of its different isotopes. |
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Ionic bonds |
Chemical bonds created by the electrical attraction between anions (-) and cations (+). |
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Covalent bonds |
Atoms complete their outer electron shell by sharing electrons with other atoms |
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Hydrogen bond |
The attraction between a slight positive charge atom of a polar covalent bond and a slight negative charge on a oxygen, nitrogen, or flourine atom of another polar covalent bond. |
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Decomposition |
Breaks larger fragment that can't be suggested into smaller ones that can be absorbed by the digestive tract. |
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Synthesis reaction |
Assembles smaller molecules into larger molecules |
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Enzymes |
Promote chemical reactions by lowering the activation energy |
