atomic number 104


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Related to atomic number 104: element 104, rutherfordium, unnilquadium
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Noun1.atomic number 104 - a radioactive transuranic element which has been synthesizedatomic number 104 - a radioactive transuranic element which has been synthesized
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter