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Chemistry of Rutherfordium

  • Page ID
    31675
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    In 1964 researchers in the Soviet Union at Dubna announced their discovery of element 104. A similar claim was made by researchers at the University of California at Berkeley. The Soviet scientists claimed to have bombarded a target of Pu-242 with Ne-22, resulting in a nucleus with 104 protons and a mass number of 260.

    \[\ce{^{22}_{10}Ne + ^{242}_{94}Pu \rightarrow ^{260}_104}Rf\]

    The Berkeley team used a Cf-249 target and isotopes of carbon for projectiles, resulting in isotopes of 104 with mass numbers of 257 and 259. Several other isotopes were also prepared by the American team.

    \[\ce{^{12}_{6}C + ^{249}_{98}Cf \rightarrow ^{257}_{104}Rf + 4^1_0n}\]

    The naming and priority of discovery controversy has raged ever since and Rutherfordium is the approved name selected by the IUPAC in August 1997.

    Contributors and Attributions

    Stephen R. Marsden


    Chemistry of Rutherfordium is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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