114Post-transition metal · Group 14 · Period 7
Flerovium
Flerovium (Fl) is element 114, a post-transition metal in the p-block — group 14, period 7. It is a solid at room temperature with 7 electron shells (2, 8, 18, 32, 32, 18, 4) and an atomic mass of 289 u.
- Atomic mass
- 289.0 u
- Phase · STP
- solid
- Melting
- 340 K · 67 °C
- Boiling
- 420 K · 147 °C
- Electronegativity
- —
- Density
- 14 g/cm³
Photograph — Chemical Elements A Virtual Museum under a Creative Commons Attribution 3.0 Unported License, source: https://images-of-elements.com/flerovium.php
Identity
- Atomic number
- 114
- Standard atomic weight
- 289.0 u
- Category
- Post-transition metal
- Group
- 14
- Period
- 7
- Block
- p-block
- Oxidation states
- 6, 4,2, 1, 0
Physical properties
- Melting point
- 340 K · 67 °C
- Boiling point
- 420 K · 147 °C
- Density
- 14 g/cm³
- Molar heat capacity
- —
- Atomic radius
- —
- Electron affinity
- —
Atomic structure
114protons
175neutrons
114electrons
4valence e⁻
- Noble-gas notation
- *[Rn] 5f14 6d10 7s2 7p2
- Full configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p2
- Electrons per shell
- 2, 8, 18, 32, 32, 18, 4
Periodic trends
Where Flerovium ranks across all 118 elements.
Discovery
- Discovered
- 1998
- Discovered by
- Joint Institute for Nuclear Research
- Named by
- —
- Appearance
- —