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atomic number 86 |
atomic number 87 |
atomic number 88 |
atomic number 89 |
atomic number 9 |
atomic number 90
| atomic number 91
| atomic number 92
| atomic number 93
| atomic number 94
| atomic number 95
atomic number 90
WORDNET DICTIONARY
Noun atomic number 90 has 1 sense
- atomic number 90(n = noun.substance) th, thorium - a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands; Array is a kind of metal, metallic element
has particulars: radiothorium, thorium-228
For further exploring for "atomic number 90" in Webster Dictionary Online
