About   |   More   |   Search
ChemLin Logo

Chromium-49

Properties and data of the isotope 49Cr.


Content

See also: list of Chromium isotopes.

 

General data

Name of the isotope:Chromium-49; Cr-49Symbol:49Cr or 4924CrMass number A:49 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:25Isotopic mass:48.9513330(24) u (atomic weight of Chromium-49)Nuclide mass:48.9381674 u (calculated nuclear mass without electrons)Mass excess:-45.33302 MeVMass defect:0.453090668 u (per nucleus)Nuclear binding energy:422.0512387 MeV (per nucleus)
8.61329059 MeV (average binding energy per nucleon)
Separation energy:SN = 10.582(8) MeV (first neutron)
SP = 8.1443(24) MeV (first proton)
Half-life:42.3(1) minDecay constant λ:0.00027310763615443 s-1Specific activity α:3.426443030929 × 10+18 Bq g-1
92606568.403511 Ci g-1
Spin and parity:
(nuclear angular momentum)
5/2-Isobaric spin: 1/2Magnetic dipole moment:μ(μN) = 0.476(3)Nuclear g-factor:gl = 0.1904Mirror nucleus:Manganese-49Year of discovery:1942

 

Radioactive Decay

Half-life T½ = 42.3(1) min (minutes) respectively 2.538 × 103 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
β+49V100 %2.6289(24) MeV

 

Parent Nuclides

Direct parent isotope is: 49Mn.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 25) and isobaric (same nucleon number A = 49) with Chromium-49. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 25Isobar A = 49
1136Na
1237Mg
1338Al
1439Si
1540P
1641S49S
1742Cl49Cl
1843Ar49Ar
1944K49K
2045Ca49Ca
2146Sc49Sc
2247Ti49Ti
2348V49V
2449Cr49Cr
2550Mn49Mn
2651Fe49Fe
2752Co49Co
2853Ni49Ni
2954Cu
3055Zn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 49Cr

 


More Chemistry

isotopes

 

 

 

 

Social Media

Facebook

LinkedIn

Twitter

 

 


Last update: 2023-10-04


© 1996 - 2024 ChemLin