Gallium-67

Properties and data of the isotope ⁶⁷Ga.

Contents

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

See also: List of individual Gallium isotopes (and general data sources).

General data

Name of the isotope:Gallium-67; Ga-67Symbol:⁶⁷Ga or 6731GaMass number A:67 (= number of nucleons)Atomic number Z:31 (= number of protons)Neutrons N:36Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.1612903225806 (= neutron-proton ratio)Neutron excess (N-Z):5Isotopic mass:66.9282023(13) u (atomic weight of Gallium-67)Nuclide mass:66.9111969 u (calculated nuclear mass without electrons)Mass excess:-66.87913 MeVMass defect:0.62631066800002 u (per nucleus)Nuclear binding energy:583.40462938 MeV (per nucleus)
8.70753178 MeV (average binding energy per nucleon)Separation energy:S_N = 11.2267(14) MeV (first neutron)
S_P = 5.2689(11) MeV (first proton)Half-life:3.2617(5) dDecay constant λ:2.459618239579 × 10^-6 s^-1Specific activity α:2.244267803093 × 10⁺¹⁶ Bq g^-1
606558.86570095 Ci g^-1Spin and parity:
(nuclear angular momentum)3/2-Magnetic dipole moment:μ(μ_N) = +1.8507(3)Quadrupole moment Q:0.195 barn (100 fm²)Nuclear g-factor:g_l = 1.2338Mirror nucleus:Krypton-67Year of discovery:1938

Radioactive Decay

Half-life T_½ = 3.2617(5) d respectively 2.8181088 × 10⁵ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC	⁶⁷Zn	100 %	1.0012(14) MeV

Parent Nuclides

Direct parent isotope is: ⁶⁷Ge.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 36) and isobaric (same nucleon number A = 67) with Gallium-67. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 36	Isobar A = 67
18	⁵⁴Ar
19	⁵⁵K
20	⁵⁶Ca
21	⁵⁷Sc
22	⁵⁸Ti
23	⁵⁹V	⁶⁷V
24	⁶⁰Cr	⁶⁷Cr
25	⁶¹Mn	⁶⁷Mn
26	⁶²Fe	⁶⁷Fe
27	⁶³Co	⁶⁷Co
28	⁶⁴Ni	⁶⁷Ni
29	⁶⁵Cu	⁶⁷Cu
30	⁶⁶Zn	⁶⁷Zn
31	⁶⁷Ga	⁶⁷Ga
32	⁶⁸Ge	⁶⁷Ge
33	⁶⁹As	⁶⁷As
34	⁷⁰Se	⁶⁷Se
35	⁷¹Br	⁶⁷Br
36	⁷²Kr	⁶⁷Kr
37	⁷³Rb
38	⁷⁴Sr