Cobalt-49
Properties and data of the isotope 49Co.
See also: list of Cobalt isotopes.
General data
Name of the isotope:Cobalt-49; Co-49Symbol:49Co or 4927CoMass number A:49 (= number of nucleons)Atomic number Z:27 (= number of protons)Neutrons N:22Isotopic mass:48.98972(28) u (atomic weight of Cobalt-49)Nuclide mass:48.9749087 u (calculated nuclear mass without electrons)Mass excess:-9.57576 MeVMass defect:0.412184016 u (per nucleus)Nuclear binding energy:383.9469378 MeV (per nucleus)
7.83565179 MeV (average binding energy per nucleon)Half-life:< 35 nsDecay constant λ:19804205.158856 s-1Specific activity α:2.484660689285 × 10+29 Bq g-1
6.715299160231 × 10+18 Ci g-1Spin and parity:
(nuclear angular momentum)7/2-~Mirror nucleus:Titanium-49
Radioactive Decay
Half-life T½ = < 35 ns respectively 3.5 × 10-8 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
p und β+ | | | | |
Parent Nuclides
Direct parent isotope is: 49Ni.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 22) and isobaric (same nucleon number A = 49) with Cobalt-49. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 22 | Isobar A = 49 |
9 | 31F | |
10 | 32Ne | |
11 | 33Na | |
12 | 34Mg | |
13 | 35Al | |
14 | 36Si | |
15 | 37P | |
16 | 38S | 49S |
17 | 39Cl | 49Cl |
18 | 40Ar | 49Ar |
19 | 41K | 49K |
20 | 42Ca | 49Ca |
21 | 43Sc | 49Sc |
22 | 44Ti | 49Ti |
23 | 45V | 49V |
24 | 46Cr | 49Cr |
25 | 47Mn | 49Mn |
26 | 48Fe | 49Fe |
27 | 49Co | 49Co |
28 | 50Ni | 49Ni |
External data and identifiers
Last update: 2023-10-04
Perma link: https://www.chemlin.org/isotope/cobalt-49
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