Moscovium-289

Properties and data of the isotope ²⁸⁹Mc.

Contents

See also: List of individual Moscovium isotopes (and general data sources).

General data

Name of the isotope:Moscovium-289; Mc-289Symbol:²⁸⁹Mc or 289115McMass number A:289 (= number of nucleons)Atomic number Z:115 (= number of protons)Neutrons N:174Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.5130434782609 (= neutron-proton ratio)Neutron excess (N-Z):59Isotopic mass:289.19397(83) u (atomic weight of Moscovium-289)Nuclide mass:289.1308945 u (calculated nuclear mass without electrons)Mass excess:180.68189 MeVMass defect:2.213604064 u (per nucleus)Nuclear binding energy:2061.95890399 MeV (per nucleus)
7.1348059 MeV (average binding energy per nucleon)Separation energy:S_N = 7.054(943) MeV (first neutron)
S_P = 1.523(1088) MeV (first proton)Half-life:0.296 sDecay constant λ:2.3417134478377 s^-1Specific activity α:4.879629147573 × 10⁺²¹ Bq g^-1
131881868853.33 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:2010

Radioactive Decay

Half-life T_½ = 0.296 s respectively 2.96 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²⁸⁵Nh	> 95 %	10.49(5) MeV
SZ	div	< 5 %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 174) and isobaric (same nucleon number A = 289) with Moscovium-289. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.