Flerovium

**Flerovium** is a synthetic chemical element also known as **eka-lead**. It has the symbol **Fl** and has the atomic number 114. It is a radioactive superheavy element.

Flerovium does not exist in nature. It is made from a nuclear reaction between plutonium and calcium. The reaction that happens is a fusion reaction.

## Uses

It currently has no use at the moment as it is being researched right now.

## History

The discovery of Flerovium in December 1998 was reported in January 1999 by scientists at the Joint Institute for Nuclear Research in Dubna, Russia. The same team of scientists made another isotope of Fl three months later and made it again in 2004 and 2006.

In 2004 in the Joint Institute for Nuclear Research checked it was made by another method.  They found the final products of radioactive decay.

After its discovery, the "new" element was named _ununquadium_. The named changed on May 30th, 2012 to "flerovium". It was named for the Flerov Laboratory of Nuclear Reactions, which was named for Russian physicist Georgy Flyorov. The International Union of Pure and Applied Chemistry named it so.

## Chemical properties

Not enough Flerovium has been made to measure its physical or chemical properties.  It is thought that it would be a soft, dense metal that changes colour in air.  It may have a low melting point of about 200 °C.

## Making it

Flerovium can be made by bombarding a plutonium-244 target with calcium-48 as a beam of ions.

## <sup>298</sup>Fl - An undiscovered neutron-rich nucleus

According to the nuclear shell model, the undiscovered neutron-rich nucleus <sup>298</sup>Fl may be a doubly magic nucleus, atop the shell closure at N=184. It is predicted that this atom, amid the closed nuclear shells, expected to have longer half-lives for alpha decay and spontaneous fission. However using the fusion-evaporation method to produce this nuclide is impractical, since more neutron-rich starting materials with low proton numbers are unstable due to beta decay.

Estimates for half-lives for this atom range from a few minutes to several billion years.

## Other websites

- WebElements.com - Uuq
- Apsidium - Flerovium
- First postcard from the island of nuclear stability
- Second postcard from the island of stability

## Infobox (element/isotopes decay)

- **mn**: 284
- **sym**: Fl
- **na**: syn
- **hl**: 2.5 ms
- **dm**: SF


## Infobox (element/isotopes decay)

- **mn**: 285
- **sym**: Fl
- **na**: syn
- **hl**: 0.10 s
- **dm**: α
- **de**: 10.41(5)
- **link1**: copernicium-281
- **pn**: 281
- **ps**: Cn


## Infobox (element/isotopes decay2)

- **mn**: 286
- **sym**: Fl
- **na**: syn
- **hl**: 0.12 s
- **dm1**: 40% α
- **de1**: 10.19
- **link1**: copernicium-282
- **pn1**: 282
- **ps1**: Cn
- **dm2**: 60% spontaneous fission, SF


## Infobox (element/isotopes decay2)

- **mn**: 287
- **sym**: Fl
- **na**: syn
- **hl**: 0.48 s
- **dm1**: α
- **de1**: 10.02
- **link1**: copernicium-283
- **pn1**: 283
- **ps1**: Cn
- **dm2**: EC?
- **link2**: nihonium-287
- **pn2**: 287
- **ps2**: Nh


## Infobox (element/isotopes decay)

- **mn**: 288
- **sym**: Fl
- **na**: syn
- **hl**: 0.66 s
- **dm**: α
- **de**: 9.94
- **link1**: copernicium-284
- **pn**: 284
- **ps**: Cn


## Infobox (element/isotopes decay)

- **mn**: 289
- **sym**: Fl
- **na**: syn
- **hl**: 1.9 s
- **dm**: α
- **de**: 9.82,9.48
- **link1**: copernicium-285
- **pn**: 285
- **ps**: Cn


## Infobox (element/isotopes decay2)

- **mn**: 290
- **sym**: Fl
- **na**: synthetic radioisotope, syn
- **hl**: 19 s?
- **dm1**: electron capture, EC
- **link1**: nihonium-290
- **pn1**: 290
- **ps1**: Nh
- **dm2**: alpha decay, α
- **de2**: 9.85
- **link2**: copernicium-286
- **pn2**: 286
- **ps2**: Cn


## Infobox (element)

- **number**: 114
- **symbol**: Fl
- **name**: flerovium
- **left**: nihonium
- **right**: moscovium
- **above**: lead, Pb
- **below**: (Uho)
- **category**: unknown chemical properties
- **category comment**: but probably a post-transition metal
- **group**: 14
- **period**: 7
- **block**: p
- **mass number comment**: (unconfirmed: 290)
- **electron configuration**: [radon, Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>2</sup>
- **electron configuration comment**: _(predicted)_
- **electrons per shell**: 2, 8, 18, 32, 32, 18, 4
- **electrons per shell comment**: _(predicted)_
- **phase**: gas
- **phase comment**: _(predicted)_
- **density gpcm3mp**: 14
- **density gpcm3mp comment**: _(predicted)_
- **boiling point k**: ~ 210
- **boiling point c**: ~ −60
- **boiling point f**: ~ −80
- **heat vaporization**: 38
- **heat vaporization comment**: _(predicted)_
- **crystal structure**: face-centred cubic
- **crystal structure comment**: _(predicted)_
- **atomic radius**: 180
- **atomic radius comment**: _(predicted)_
- **covalent radius**: 171–177
- **covalent radius comment**: _(extrapolated)_
- **number of ionization energies**: 5
- **ionization energy 1**: 832.2
- **ionization energy 1 comment**: _(predicted)_
- **ionization energy 2**: 1600
- **ionization energy 2 comment**: _(predicted)_
- **ionization energy 3**: 3370
- **ionization energy 3 comment**: _(predicted)_
- **cas number**: 54085-16-4
- **naming**: after Flerov Laboratory of Nuclear Reactions (itself named after Georgy Flyorov)
- **discovered by**: Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL)
- **discovery date**: 1999
- **qid**: Q1302