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Definition
| the movement of atmospheric nitrogen atoms through Earth's ecosystems via collection by bacteria, conversion into ammonia or ammonium ions, conversion into nitrate ions uptake by plants, passage through the food chain, release as ammonia or ammonium ions, and conversion back into atmospheric nitrogen |
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Definition
| a chemical analysis method that uses color intensity to determine solution concentration |
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Definition
| an instrument for determining the concentration of a colored solution based on color-intensity measurements |
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Definition
| the positive number assigned to an atom in a compound when that atom has less control of its electrons than it has as a free element |
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Definition
| the negative number assigned to an atom in a compound when that atom has greater control of bonding electrons than the control exerted by one or more atoms to which it is bonded |
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Definition
| the value of the oxidation state of an element's atoms when not chemically combined with any other element |
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Term
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Definition
| the apparent state of oxidation of an atom; also called oxidation number |
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