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Meitnerium-276

Properties and data of the isotope 276Mt.


Content

See also: list of Meitnerium isotopes.

 

General data

Name of the isotope:Meitnerium-276; Mt-276Symbol:276Mt or 276109MtMass number A:276 (= number of nucleons)Atomic number Z:109 (= number of protons)Neutrons N:167Isotopic mass:276.15171(57) u (atomic weight of Meitnerium-276)Nuclide mass:276.0919247 u (calculated nuclear mass without electrons)Mass excess:141.31695 MeVMass defect:2.14825946 u (per nucleus)Nuclear binding energy:2001.09079743 MeV (per nucleus)
7.25032898 MeV (average binding energy per nucleon)
Separation energy:SN = 5.525(658) MeV (first neutron)
SP = 2.469(797) MeV (first proton)
Half-life:0.69(+9-7) sDecay constant λ:1.0045611312463 s-1Specific activity α:2.191887186515 × 10+21 Bq g-1
59240194230.146 Ci g-1
Spin and parity:
(nuclear angular momentum)
Year of discovery:2004

 

Radioactive Decay

Half-life T½ = 0.69(+9-7) s respectively 6.9 × 10-1 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
α272Bhca. 100 %10.100(10) MeV

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 167) and isobaric (same nucleon number A = 276) with Meitnerium-276. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 167Isobar A = 276
107274Bh276Bh
108275Hs276Hs
109276Mt276Mt
110277Ds276Ds
111278Rg276Rg
112279Cn
113280Nh

 

External data and identifiers

Adopted Levels, Gammas:NuDat 276Mt

 


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Last update: 2023-05-03


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