Americium-248

Properties and data of the isotope ²⁴⁸Am.

Content

General data

Name of the isotope:Americium-248; Am-248Symbol:²⁴⁸Am or 24895AmMass number A:248 (= number of nucleons)Atomic number Z:95 (= number of protons)Neutrons N:153Isotopic mass:248.07575(21) u (atomic weight of Americium-248)Nuclide mass:248.0236421 u (calculated nuclear mass without electrons)Mass excess:70.56067 MeVMass defect:1.993360188 u (per nucleus)Nuclear binding energy:1856.80305496 MeV (per nucleus)
7.48710909 MeV (average binding energy per nucleon)Half-life:Spin and parity:
(nuclear angular momentum)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 153) and isobaric (same nucleon number A = 248) with Americium-248. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 153	Isobar A = 248
94	²⁴⁷Pu
95	²⁴⁸Am	²⁴⁸Am
96	²⁴⁹Cm	²⁴⁸Cm
97	²⁵⁰Bk	²⁴⁸Bk
98	²⁵¹Cf	²⁴⁸Cf
99	²⁵²Es	²⁴⁸Es
100	²⁵³Fm	²⁴⁸Fm
101	²⁵⁴Md	²⁴⁸Md
102	²⁵⁵No
103	²⁵⁶Lr
104	²⁵⁷Rf
105	²⁵⁸Db
106	²⁵⁹Sg
107	²⁶⁰Bh