Germanium-60

Properties and data of the isotope ⁶⁰Ge.

Contents

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

General data

Name of the isotope:Germanium-60; Ge-60Symbol:⁶⁰Ge or 6032GeMass number A:60 (= number of nucleons)Atomic number Z:32 (= number of protons)Neutrons N:28Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):0.875 (= neutron-proton ratio)Neutron excess (N-Z):-4Isotopic mass:59.97092(32) u (atomic weight of Germanium-60)Nuclide mass:59.953366 u (calculated nuclear mass without electrons)Mass excess:-27.08785 MeVMass defect:0.52209867200001 u (per nucleus)Nuclear binding energy:486.33178038 MeV (per nucleus)
8.10552967 MeV (average binding energy per nucleon)Separation energy:S_N = 19.29(50) MeV (first neutron)
S_P = 62.0(34) MeV (first proton)Half-life:110 nsDecay constant λ:6301338.0050904 s^-1Specific activity α:6.431787300462 × 10⁺²⁸ Bq g^-1
1.738320892016 × 10⁺¹⁸ Ci g^-1Spin and parity:
(nuclear angular momentum)0+Mirror nucleus:Nickel-60Year of discovery:2005

Radioactive Decay

Half-life T_½ = 110 ns respectively 1.10 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EC/β⁺	⁶⁰Ga	?	12.50(36) MeV
EC, p	⁵⁹Zn	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 28) and isobaric (same nucleon number A = 60) with Germanium-60. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 28	Isobar A = 60
11	³⁹Na
12	⁴⁰Mg
13	⁴¹Al
14	⁴²Si
15	⁴³P
16	⁴⁴S
17	⁴⁵Cl
18	⁴⁶Ar
19	⁴⁷K
20	⁴⁸Ca
21	⁴⁹Sc	⁶⁰Sc
22	⁵⁰Ti	⁶⁰Ti
23	⁵¹V	⁶⁰V
24	⁵²Cr	⁶⁰Cr
25	⁵³Mn	⁶⁰Mn
26	⁵⁴Fe	⁶⁰Fe
27	⁵⁵Co	⁶⁰Co
28	⁵⁶Ni	⁶⁰Ni
29	⁵⁷Cu	⁶⁰Cu
30	⁵⁸Zn	⁶⁰Zn
31	⁵⁹Ga	⁶⁰Ga
32	⁶⁰Ge	⁶⁰Ge