Flerovium-288

Properties and data of the isotope ²⁸⁸Fl.

Content

Flerovium-288 is a radioisotope of the chemical element flerovium, which, in addition to the element-specific 114 protons, has 174 neutrons in the atomic nucleus, resulting in the mass number 288. The very short-lived, only artificially producible, unstable and therefore radioactive nuclide has no practical significance; dealing with ²⁸⁸Fl is for academic purposes only.

General data

Name of the isotope:Flerovium-288; Fl-288Symbol:²⁸⁸Fl or 288114FlMass number A:288 (= number of nucleons)Atomic number Z:114 (= number of protons)Neutrons N:174Isotopic mass:288.18778(82) u (atomic weight of Flerovium-288)Nuclide mass:288.1252529 u (calculated nuclear mass without electrons)Mass excess:174.91594 MeVMass defect:2.2119690320001 u (per nucleus)Nuclear binding energy:2060.43588149 MeV (per nucleus)
7.15429126 MeV (average binding energy per nucleon)Separation energy:S_N = 7.083(981) MeV (first neutron)
S_P = 3.827(1040) MeV (first proton)Half-life:0.64 sDecay constant λ:1.0830424696249 s^-1Specific activity α:2.264664690755 × 10⁺²¹ Bq g^-1
61207153804.195 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:2004

Radioactive Decay

Half-life T_½ = 0.64 s respectively 6.4 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²⁸⁴Cn	≥ 97 %	10.076(12) MeV
SF	div	≤ 3 %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 174) and isobaric (same nucleon number A = 288) with Flerovium-288. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.