Science · Periodic table

Moscovium

Mc · Atomic number 115 · post-transition metal

Quick answerMoscovium (Mc) is a post-transition metal with atomic number 115 and a mass number of 290 (the most stable isotope), in group 15, period 7. It was discovered by Yuri Oganessian and colleagues in 2003. It is used for superheavy element research and testing the island of stability. Its electron configuration is [Rn] 5f14 6d10 7s2 7p3 (predicted).

Moscovium is a synthetic element named for Moscow, created by smashing calcium ions into americium in a particle accelerator.

Key facts

SymbolMc
Atomic number115
Atomic mass[290] — mass number of the most stable isotope
Categorypost-transition metal
Group15
Period7
Blockp-block
Electron configuration [Rn] 5f14 6d10 7s2 7p3 predicted
DiscoveredYuri Oganessian and colleagues, 2003
Usessuperheavy element research, testing the island of stability

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Sources & last updated

Last updated: . Figures are shown with their year; where sources disagree, the value is left out rather than estimated.