Darmstadtium is the 110th element on the periodic table. Hassium is 108th, Copernicium is 112th, and Dubnium is 105th. The periodic table is an organized array of all the chemical elements in order of increasing atomic number, showing their recurring patterns of properties.

Darmstadtium (Ds), is an artificially produced transuranium element of atomic number 110. In 1995 scientists at the Institute for Heavy Ion Research in Darmstadt, Germany, announced the formation of atoms of element 110 when lead-208 was fused with nickel-62. The atoms of element 110 had an atomic weight of 269 and decayed after 260 microseconds (1 microsecond = 1 millionth of a second) into atoms of hassium-265 by emitting an alpha particle (helium nucleus).

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