About   |   More   |   Search
ChemLin Logo

Rhodium-104

Properties and data of the isotope 104Rh.


Contents

See also: list of Rhodium isotopes.

 

General data

Name of the isotope:Rhodium-104; Rh-104Symbol:104Rh or 10445RhMass number A:104 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:59Isotopic mass:103.9066453(25) u (atomic weight of Rhodium-104)Nuclide mass:103.8819605 u (calculated nuclear mass without electrons)Mass excess:-86.95934 MeVMass defect:0.95671118400001 u (per nucleus)Nuclear binding energy:891.17072763 MeV (per nucleus)
8.5689493 MeV (average binding energy per nucleon)
Separation energy:SN = 6.99896(8) MeV (first neutron)
SP = 6.9811(23) MeV (first proton)
Half-life:42.3(4) sDecay constant λ:0.016386458169266 s-1Specific activity α:9.580733911726 × 10+19 Bq g-1
2589387543.7098 Ci g-1
Spin and parity:
(nuclear angular momentum)
1+Year of discovery:1939

 

Radioactive Decay

Half-life T½ = 42.3(4) s respectively 4.23 × 101 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
EC/β+104Ru0.45(10) %1.136(3) MeV
β-104Pd99.55(10) %2.4358(27) MeV

 

Nuclear Isomers

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

Nuclear IsomerExcitation EnergyHalf-lifeSpin
104mRh128.9679(5) keV4.34(3) min5+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 59) and isobaric (same nucleon number A = 104) with Rhodium-104. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 59Isobar A = 104
3392As
3493Se
3594Br
3695Kr
3796Rb
3897Sr104Sr
3998Y104Y
4099Zr104Zr
41100Nb104Nb
42101Mo104Mo
43102Tc104Tc
44103Ru104Ru
45104Rh104Rh
46105Pd104Pd
47106Ag104Ag
48107Cd104Cd
49108In104In
50109Sn104Sn
51110Sb104Sb
52111Te
53112I
54113Xe
55114Cs
56115Ba
57116La

 

External data and identifiers

Adopted Levels, Gammas:NuDat 104Rh

 


More Chemistry

isotopes

Social Media

Facebook

LinkedIn

Twitter


Last update: 2020-10-15


© 1996 - 2025 ChemLin