Meitnerium
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Meitnerium is a chemical element, having the chemical symbol Hs and its atomic number (the number of protons) is 109. It has a standard atomic weight of 276 g•mol −1 and it is a solid in its elemental form.
Meitnerium is considered a member of the "Transition metal" class of elements. There is no available data for its boiling point or its melting point.