40K Isotope Properties
Isotopic abundance 0.0117(1)%

Ground state properties:
μ = -1.298100(3) nm
Q = -0.061(5) b

Excited state properties:
E = 29.8299(5) keV
ER = 1.19515(2) 10-2 eV
μ = -1.29(9) nm
T1/2 = 4.25(6) ns
W = 2.2(2) mm/s


Unit Conversion:
1mm/s = 24.0594(4) MHz
1mm/s = 9.95018(2) 10-8eV
Energy Level Diagram

Mössbauer Effect Data Center – July 2010