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d express -big monday xword

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Donald Duck | 11:15 Mon 07th Jan 2008 | Quizzes & Puzzles
4 Answers
synthetic radioactive chemical element produced by high-energy atomic collisions-for example, of americum with neon (7) I have d?b?i?m but regret I can't work it out!
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dubnium?
Element 105 (called hahnium from 1970 until 1997, when it was renamed dubnium) was produced at Dubna in 1967 by bombarding americium with neon ions; ...
Dubrium (Atomic Number 104)
Doubly wrong Gen2

Rutherfordium is Element 104

Dubnium is Element 105

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d express -big monday xword

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