Flerovium

Flerovium (Fl)

Atomic Number114
Atomic Weight289
Mass Number284
Group14
Period7
Blockp
Protons114 p+
Neutrons170 n0
Electrons114 e-
Electron shell 114 Flerovium.svg Animated Bohr Model of Fl (Flerovium) Enhanced Bohr Model of Fl (Flerovium) Bohr Model: Fl (Flerovium) Orbital Diagram of Fl (Flerovium)

Properties

Atomic Radius
Molar Volume
Covalent Radius
143 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius
Density
9.928 g/cm³
Energy
Proton Affinity
Electron Affinity
Ionization Energy
Heat of Vaporization
Heat of Fusion
Heat of Formation
Electrons
Electron Shells2, 8, 18, 32, 32, 18, 4
Valence Electrons0
Electron Configuration[Rn] 5f14 6d10 7s2 7p2
Oxidation States
Electronegativity
Electrophilicity
Phases
PhaseSolid
Gas Phase
Boiling Point
Melting Point
Critical Pressure
Critical Temperature
Triple Point
Visual
Color
Colorless
Appearance
Refractive Index
Thermodynamic Properties
Thermal Conductivity
Thermal Expansion
Molar Heat Capacity
Specific Heat Capacity
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type
Magnetic Susceptibility (Mass)
Magnetic Susceptibility (Molar)
Magnetic Susceptibility (Volume)
Magnetic Ordering
Curie Point
Neel Point
Structure
Crystal Structure ()
Lattice Constant
Lattice Angles
Mechanical Properties
Hardness
Bulk Modulus
Shear Modulus
Young Modulus
Poisson Ratio
Speed of Sound
Classification
CategoryPost-transition metals, Poor metals
CAS GroupIVB
IUPAC GroupIVA
Glawe Number
Mendeleev Number92
Pettifor Number
Geochemical Class
Goldschmidt Classsynthetic
Other
Gas Basicity
Dipole Polarizability
31 ± 4 a₀
C6 Dispersion Coefficient
Allotropes
Neutron Cross Section
Neutron Mass Absorption
Quantum Numbers3P0
Space Group ()

Isotopes of Flerovium

Stable Isotopes0
Unstable Isotopes8
Radioactive Isotopes8

284Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
284.181192 ± 0.000704 Da
Mass Number284
G-Factor
0
Half Life
3.1 ± 1.3 ms
Spin0
Quadrupole Moment
0
Discovery Year2015
Parity+

284Fl Decay Modes
Decay ModeIntensity
SF (spontaneous fission)100%
α (α emission)%

285Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
285.183503 ± 0.000433 Da
Mass Number285
G-Factor
Half Life
210 ± 100 ms
Spin
Quadrupole Moment
Discovery Year2010
Parity

285Fl Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)20%

286Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
286.184226 ± 0.00059 Da
Mass Number286
G-Factor
0
Half Life
130 ± 30 ms
Spin0
Quadrupole Moment
0
Discovery Year2004
Parity+

286Fl Decay Modes
Decay ModeIntensity
α (α emission)59%
SF (spontaneous fission)41%

287Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
287.18672 ± 0.000663 Da
Mass Number287
G-Factor
Half Life
510 ± 120 ms
Spin
Quadrupole Moment
Discovery Year2004
Parity

287Fl Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

288Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
288.187781 ± 0.000819 Da
Mass Number288
G-Factor
0
Half Life
653 ± 113 ms
Spin0
Quadrupole Moment
0
Discovery Year2004
Parity+

288Fl Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

289Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
289.190517 ± 0.000548 Da
Mass Number289
G-Factor
Half Life
2.1 ± 0.6 s
Spin
Quadrupole Moment
Discovery Year2004
Parity

289Fl Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%

290Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
290.191875 ± 0.000752 Da
Mass Number290
G-Factor
0
Half Life
80 ± 60 s
Spin0
Quadrupole Moment
0
Discovery Year2016
Parity+

290Fl Decay Modes
Decay ModeIntensity
α (α emission)100%
SF (spontaneous fission)%
β+ (β+ decay; β+ = ϵ + e+)50%

291Fl

AbundanceRadioactive ☢️
Relative Atomic Mass
291.194848 ± 0.000751 Da
Mass Number291
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

291Fl Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

History

Ununquadium (Uuq) was the temporary IUPAC systematic element name. In 1998, a team led by Yuri Oganessian and Vladimir Utyonkov at the Joint Institute for Nuclear Research, Dubna produced flerovium by bombarding plutonium with calcium. In an experiment lasting 40 days, 5 x 1018 atoms of calcium to be fired at plutonium to produce a single atom of flerovium. Named after the founder of the Flerov Laboratory of Nuclear Reactions, the Soviet physicist Georgy Flyorov

DiscoverersJoint Institute for Nuclear Research
Discovery LocationRussia
Discovery Year1998
Etymology (Name Origin)Named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia.
Pronunciation
Flerovium is harmful due to its radioactivity
The longest-lived isotope currently known is 289Fl

Uses

Flerovium is used for scientific research purposes only.

Sources

Made by bombarding plutonium-244 with calcium-48.

Abundance
Abundance in Earth's crust
Abundance in Oceans
Abundance in Human Body
0 %
Abundance in Meteor
0 %
Abundance in Sun
0 %
Abundance in Universe
0 %

Nuclear Screening Constants