FLEROVIUM

Introduction

Atomic Number: 114
Group: 14 or IV A
Atomic Weight: 289
Period: 7
CAS Number: 54085-16-4

Classification

Chalcogen
Halogen
Noble Gas
Lanthanoid
Actinoid
Rare Earth Element
Platinum Group Metal
Transuranium
No Stable Isotopes
Solid
Liquid
Gas
Solid (Predicted)

Description • Uses/Function

 1

Physical Properties

Density:   g/cm3

* - at 1 atm

Electron Configuration

Electron Configuration: [Rn] 7s2 5f14 6d10 7p2
Block: p
Highest Occupied Energy Level: 7
Valence Electrons: 4

Quantum Numbers:

n = 7
ℓ = 1
m = 0
ms = +½

Bonding

Isotopes

Nuclide Mass 2 Half-Life 2 Nuclear Spin 2 Binding Energy
285Fl 285.18370(111)# 5# s 3/2+# 2,043.47 MeV
286Fl 286.18386(83)# 0.16(+7-3) ms 0+ 2,051.54 MeV
287Fl 287.18560(83)# 0.51(+18-10) s 2,059.61 MeV
288Fl 288.18569(91)# 2.8(14) s [0.8(+27-16) s] 0+ 2,067.68 MeV
289Fl 289.18728(79)# 2.6(+12-7) s 5/2+# 2,075.75 MeV
Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses. 2

Abundance

Safety Information


Material Safety Data Sheet - ACI Alloys, Inc.

For More Information

External Links:

Sources

(1) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p .
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; pp 6:123-6:137.
(3) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; pp 6:107-6:122.
(4) - Atomic Mass Data Center. http://amdc.in2p3.fr/web/nubase_en.html (accessed July 14, 2009).