Flerovium (Fl)
Element 114 was long predicted to lie near the center of an 'island of stability' of longer-lived superheavy nuclei.
Flerovium properties
- Atomic number
- 114
- Atomic mass
- 289 u
- Category
- Unknown properties
- Group
- 14
- Period
- 7
- Block
- p-block
- State at room temp.
- Unknown
- Density
- —
- Electron affinity
- —
- Radioactive
- Yes, no stable isotopes
- Discovered
- 1999
Flerovium electron configuration
- Electron configuration
- [Rn] 5f14 6d10 7s2 7p2
- Full electron configuration
- 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p2
- Electron shells
- 2 · 8 · 18 · 32 · 32 · 18 · 4
The electron configuration of Flerovium (Fl) is [Rn] 5f14 6d10 7s2 7p2. Its 114 electrons are arranged in shells as 2, 8, 18, 32, 32, 18, 4.
Protons, neutrons and electrons in Flerovium
A neutral Flerovium atom has 114 protons and 114 electrons. Most Flerovium atoms have about 175 neutrons: the atomic mass rounded to 289, minus the atomic number 114.
Neutrons are approximate: atoms of the same element can have different numbers of neutrons (isotopes). Atomic number and mass
How many valence electrons does Flerovium have?
4
Flerovium has 4 valence electrons in its outermost shell, shell 7. These are the electrons involved in chemical bonding.
Flerovium orbital diagram
Each box is an orbital that holds up to two electrons with opposite spins (↑↓). The inner shells are the same as the noble gas in brackets. How to write electron configurations
Molar mass of Flerovium
289 g/mol
One mole of Flerovium atoms (6.022 × 10²³ atoms) has a mass of 289 grams. Use this value to convert between grams and moles.
Flerovium facts
- Element 114 was long predicted to lie near the center of an 'island of stability' of longer-lived superheavy nuclei.
- Flerovium and livermorium received their official names on the same day in 2012.
- Flerovium (Fl) has atomic number 114. It was discovered in 1999.
Position in the periodic table
Flerovium is element 114, in period 7 and group 14 of the periodic table, in the p-block.
Uses of Flerovium
Flerovium has no uses outside research. Only a small number of atoms have been made, each lasting about a second or less, and chemists have used them in single-atom experiments to test whether it is unusually unreactive for a group 14 element, as relativistic effects predict. Results so far suggest it is a volatile metal that is less reactive than lead.
Who discovered Flerovium?
A team led by Yuri Oganessian at the Joint Institute for Nuclear Research in Dubna, Russia, working with Lawrence Livermore National Laboratory, first reported flerovium in 1999 after bombarding plutonium with calcium ions. It is named after the institute's Flerov Laboratory of Nuclear Reactions, which honors physicist Georgy Flerov.
Where does the name come from?
Flerovium honors the Flerov Laboratory of Nuclear Reactions in Dubna, Russia, where it was first made, and the laboratory's founder, Soviet physicist Georgy Flerov, known for his work on nuclear fission.
Same group
Compare Flerovium
FAQ
What is the electron configuration of Flerovium?
The electron configuration of Flerovium (Fl) is [Rn] 5f14 6d10 7s2 7p2. Its 114 electrons are arranged in shells as 2, 8, 18, 32, 32, 18, 4.
How many protons, neutrons and electrons does Flerovium have?
A neutral Flerovium atom has 114 protons and 114 electrons. Most Flerovium atoms have about 175 neutrons: the atomic mass rounded to 289, minus the atomic number 114.
How many valence electrons does Flerovium have?
Flerovium has 4 valence electrons in its outermost shell, shell 7. These are the electrons involved in chemical bonding.
What is the molar mass of Flerovium?
The molar mass of Flerovium is 289 g/mol. This is the same number as its atomic mass, 289 u.
Is Flerovium a metal?
Flerovium is a synthetic superheavy element, so too few atoms have been made to measure whether it behaves as a metal.
Is Flerovium radioactive?
Yes. Flerovium has no stable isotopes, so all of its atoms are radioactive and eventually decay into other elements.
Where is Flerovium on the periodic table?
Flerovium is element 114, in period 7 and group 14 of the periodic table, in the p-block.