About   |   More   |   Search
ChemLin Logo

Ruthenium-103m

Properties and data of the isotope 103mRu.


Content

See also: list of Ruthenium isotopes.

 

General data

Name of the isotope:Ruthenium-103m; Ru-103mSymbol:103mRu or 103m44RuMass number A:103 (= number of nucleons)Atomic number Z:44 (= number of protons)Neutrons N:59Isotopic mass:102.9063148(5) u (atomic weight of Ruthenium-103m)
Excitation energy: 238.2(7) keV
Nuclide mass:102.8821785 u (calculated nuclear mass without electrons)Mass excess:-87.2672 MeVMass defect:0.949216652 u (per nucleus)Nuclear binding energy:884.18961604 MeV (per nucleus)
8.5843652 MeV (average binding energy per nucleon)
Half-life:1.69(7) msDecay constant λ:410.14626068636 s-1Specific activity α:2.42152799512 × 10+24 Bq g-1
65446702571000 Ci g-1
Spin and parity:
(nuclear angular momentum)
11/2-

 

Radioactive Decay

Half-life T½ = 1.69(7) ms respectively 1.69 × 10-3 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
Iso103Ru100 %

 

Nuclear Isomers

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

Nuclear IsomerExcitation EnergyHalf-lifeSpin
103Ru39.247(13) d3/2+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 59) and isobaric (same nucleon number A = 103) with Ruthenium-103m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 59Isobar A = 103
3392As
3493Se
3594Br
3695Kr
3796Rb103Rb
3897Sr103Sr
3998Y103Y
4099Zr103Zr
41100Nb103Nb
42101Mo103Mo
43102Tc103Tc
44103Ru103Ru
45104Rh103Rh
46105Pd103Pd
47106Ag103Ag
48107Cd103Cd
49108In103In
50109Sn103Sn
51110Sb103Sb
52111Te
53112I
54113Xe
55114Cs
56115Ba
57116La

 


More Chemistry

isotopes

Social Media

Facebook

LinkedIn

Twitter


Last update: 2020-10-15


© 1996 - 2024 ChemLin