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114Fl289

Flerovium

Post-transition metalsBlock pPeriod 7Group 14unknown at 20 °C
Configuration :[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²
Atomic mass :289 u
French :Flérovium
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Predicted propertiesMany physical properties of this element are theoretical calculated values, not experimental measurements. Transactinides (Z ≥ 104) are only synthesized as a few atoms with very short half-lives. Source: IUPAC 2021.
3D Bohr-model representation of the Flerovium atom (symbol Fl, atomic number Z=114). Electron shell configuration: 2, 8, 18, 32, 32, 18, 4 electrons.
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Bohr model · educational

Electron configuration

Full[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²
Short[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²
Valence electrons4
KLMNOPQ shells
K2
L8
M18
N32
O32
P18
Q4

Electronegativity

Pauling
Allen
Mulliken (eV)

Atomic radii

Empirical
Calculated
Covalent
Van der Waals

Successive ionisation energies

I₁832.2 kJ/mol
Electron affinity

Oxidation states

0+1+2+4+6
Bold states = most common.
Period 7Block pIUPAC Group 14Family Post-transition metals
Sources : NIST Atomic Weights & Isotopic Compositions, IUPAC Recommendations, CODATA. Methodology