Definition of roentgenium in English:

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Pronunciation: /rəːntˈɡɛnɪəm/
Pronunciation: /rʌntˈdʒɛnɪəm/
Pronunciation: /rɒntˈɡɛnɪəm/


The chemical element of atomic number 111, a radioactive element produced artificially. (Symbol: Rg)


Early 21st century: named after Wilhelm Conrad Röntgen (see roentgen).

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Line breaks: roent|gen|ium

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