Meitnerium (Mt)

Meitnerium is named after Lise Meitner, the physicist who co-discovered nuclear fission.

Iron and bismuth nuclei spiralling together and fusing into meitnerium, a single atom glowing alone in enormous darkness — Video: Iron and bismuth nuclei spiralling together and fusing into meitnerium, a single atom glowing alone in enormous darkness

Properties of Meitnerium

Atomic number: 109
Category: Transition Metal
Atomic mass: 278 u
Electron configuration: [Rn] 5f¹⁴ 6d⁷ 7s²
Density: 37.4 g/cm³
Appearance: Unknown, presumably metallic
Discovered by: Peter Armbruster (1982)

Facts about Meitnerium

Meitnerium is named after Lise Meitner, who helped discover nuclear fission!
Lise Meitner was unfairly left out of the Nobel Prize for fission — naming an element after her helped honor her!
Meitnerium atoms exist for only about 7.6 seconds!
Meitnerium was created by smashing bismuth with iron!

Meitnerium videos

Iron and bismuth nuclei spiralling together and fusing into meitnerium, a single atom glowing alone in enormous darkness

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