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114 · Fl

Flerovium

Produced at Dubna with Livermore in 1999. The name flerovium in 2012.

Identity

Atomic number
114
Symbol
Fl
Canonical name
Flerovium
Category
post-transition metal
Group
14
Period
7
Block
p

Bulk chemistry is not established. The table column is not a confirmed family.

Properties

These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.

Atomic mass
[289] No standard atomic weight. The number shown is the conventional mass number used in tables, not a measured mass in u.
Electron configuration
*[Rn] 5f14 6d10 7s2 7p2
Electrons per shell
2, 8, 18, 32, 32, 18, 4
Standard state
not established
Density
14 g/cm³ (estimated) Predicted value: the element has not been observed in bulk.
Melting point
340 K (estimated) Predicted value: the element has not been observed in bulk.
Boiling point
420 K (estimated) Predicted value: the element has not been observed in bulk.

Notable isotopes

This summary is not an inventory of every isotope.

Conventional mass number: 289

History

Flerovium

Synthesis · confirmed · 1999

The Dubna institute, with Livermore, produces element 114 by calcium-48 reactions.

Target
244Pu
Projectile
48Ca
Isotope produced
289Fl

The name flerovium

Official recognition · officially recognized · 2012

IUPAC adopts the name flerovium in 2012.

See the element timeline

Etymology

Theme
scientist
Language
russe
Root
Flerov
Meaning
Georgy Flerov
Temporary systematic name
ununquadium (Uuq)
Official adoption
2012

Scientists

Places and institutions

  • Dubna — historical setting : Soviet Union — present country : Russia

See also

Sources