Palladium-95m

Properties and data of the isotope ⁹⁵Pd.

Content

General data

Name of the isotope:Palladium-95m; Pd-95mSymbol:⁹⁵Pd or 9546PdMass number A:95 (= number of nucleons)Atomic number Z:46 (= number of protons)Neutrons N:49Isotopic mass:94.924889(3) u (atomic weight of Palladium-95m)
Excitation energy: 1875.13(14) keVNuclide mass:94.8996556 u (calculated nuclear mass without electrons)Mass excess:-69.96545 MeVMass defect:0.85964335600001 u (per nucleus)Nuclear binding energy:800.75262825 MeV (per nucleus)
8.42897503 MeV (average binding energy per nucleon)Half-life:13.3(3) sDecay constant λ:0.052116329365409 s^-1Specific activity α:3.338849750439 × 10⁺²⁰ Bq g^-1
9023918244.4322 Ci g^-1Spin and parity:
(nuclear angular momentum)(21/2+)

Radioactive Decay

Half-life T_½ = 13.3(3) s respectively 1.33 × 10¹ seconds s.

Decay mode	Daughter	Probability
EE/β⁺	⁹⁵Rh	89(3) %
Iso	⁹⁵Pd	11(3) %
β⁺, p	⁹⁴Ru	0.93(15) %

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
⁹⁵Pd		5(3) s	(9/2+)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 49) and isobaric (same nucleon number A = 95) with Palladium-95m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 49	Isobar A = 95
27	⁷⁶Co
28	⁷⁷Ni
29	⁷⁸Cu
30	⁷⁹Zn
31	⁸⁰Ga
32	⁸¹Ge
33	⁸²As
34	⁸³Se	⁹⁵Se
35	⁸⁴Br	⁹⁵Br
36	⁸⁵Kr	⁹⁵Kr
37	⁸⁶Rb	⁹⁵Rb
38	⁸⁷Sr	⁹⁵Sr
39	⁸⁸Y	⁹⁵Y
40	⁸⁹Zr	⁹⁵Zr
41	⁹⁰Nb	⁹⁵Nb
42	⁹¹Mo	⁹⁵Mo
43	⁹²Tc	⁹⁵Tc
44	⁹³Ru	⁹⁵Ru
45	⁹⁴Rh	⁹⁵Rh
46	⁹⁵Pd	⁹⁵Pd
47	⁹⁶Ag	⁹⁵Ag
48	⁹⁷Cd	⁹⁵Cd
49	⁹⁸In
50	⁹⁹Sn