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meitnerium

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Meitnerium


Synthesized radioactive element of the transactinide series, atomic number 109, relative atomic mass 266. It was first produced in 1982 at the Laboratory for Heavy-Ion Research in Darmstadt, Germany, by fusing bismuth and iron nuclei; it took a week to obtain a single new, fused nucleus. It was known by the temporary name unnilennium until 1997 when it was named after the Austrian-born Swedish physicist Lise Meitner.

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Burkina Faso Flag
Burkina Faso Flag Red symbolizes the revolution of 1984. The five-pointed star is said to signify the revolution or freedom. Green stands for the country's natural resources. Effective date: 4 August 1984. >>

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