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Flerovium (Fl)

From Wikipedia, the free encyclopediaFlerovium is a superheavy artificial chemical element with symbol Fl and atomic number 114. It is an extremely radioactive synthetic element. The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia, where the element was discovered in 1998.

Flerovium in the periodic table

SymbolFl
Atomic number114
Group14
Period7
Blockp
Element categoryPost-Transition Metal

Physical properties

Phase at STPSolid
Density14 g/cm3
Atomic weight289 u
Melting point340 K
66.85 °C
152.33 °F
Boiling point420 K
146.85 °C
296.33 °F

Atomic properties

Electronegativity (Pauling Scale)
Electron affinity kJ/mol
Oxidation states(0), (+1), (+2), (+4), (+6)
(predicted)
Ionization energies
1823.9 kJ/mol
21601.6 kJ/mol
33367.3 kJ/mol
44399.7 kJ/mol
55847.0 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)[Rn] 5f14 6d10 7s2 7p2
Electron configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p2
Electrons per shell2, 8, 18, 32, 32, 18, 4

History

Discovered1999
Discovered byJoint Institute for Nuclear Research
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