Definition of atomic number 89 Atomic number 89
We found 1 definitions of atomic number 89 from 1 different sources.
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What does atomic number 89 mean?
WordNet
Noun |
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| atomic number 89 - a radioactive element of the actinide series; found in uranium ores | ||
| actinium, Ac | ||
| chemical element, element the most favorable environment for a plant or animal; "water is the element of fishes" | ||
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