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atomic number 5 |
atomic number 50 |
atomic number 51 |
atomic number 52 |
atomic number 53 |
atomic number 54
| atomic number 55
| atomic number 56
| atomic number 57
| atomic number 58
| atomic number 59
atomic number 54
WORDNET DICTIONARY
Noun atomic number 54 has 1 sense
- atomic number 54(n = noun.substance) xe, xenon - a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts; Array is a kind of chemical element, element, argonon, inert gas, noble gas
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