🔬 Discovery

Moscovium

Moscovio (Mc, Z=115)

Date
2003 · confidence high
Place
Dubna, Russia (JINR)
Credited to
Yuri Oganessian and the JINR-Livermore collaboration
People
👤 Yuri Tsolakovich Oganessian1933–
Field
Matter & energy

⚠️ Disputed: the sources disagree.

What was discovered

Four atoms produced by fusing calcium-48 with americium-243; their decay generated the first atoms of nihonium.

Recognised by the IUPAC in 2015.

What it led to

  • Indirect discovery of element 113
  • Named after the Moscow region
  • Confirmation of decay chains at GSI and Berkeley

Built on

  • Ca-48 method
  • Oak Ridge americium target

Made possible

  • Cross-confirmation through dubnium chemistry

Links

Sources✓ verified 2026-09-25