Assertion: rutherfordium | /r/HasProperty | ipa: /ˌrʌðə(r)ˈfɔːdiəm/
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Source sentences:
text: Rutherfordium ( IPA: /ˌrʌðə(r)ˈfɔːdiəm/), also called eka-hafnium, is a chemical element in the periodic table that has the symbol Rf and atomic number 104.