Flerovium-287m

Properties and data of the isotope ²⁸⁷Fl.

Content

General data

Name of the isotope:Flerovium-287m; Fl-287mSymbol:²⁸⁷Fl or 287114FlMass number A:287 (= number of nucleons)Atomic number Z:114 (= number of protons)Neutrons N:173Mass defect:289.391084116 u (per nucleus)Nuclear binding energy:269566.05850755 MeV (per nucleus)
939.25455926 MeV (average binding energy per nucleon)Half-life:Spin and parity:
(nuclear angular momentum)

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
²⁸⁷Fl		0.40 s

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 173) and isobaric (same nucleon number A = 287) with Flerovium-287m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.