Silver-119

Properties and data of the isotope ¹¹⁹Ag.

Content

General data

Name of the isotope:Silver-119; Ag-119Symbol:¹¹⁹Ag or 11947AgMass number A:119 (= number of nucleons)Atomic number Z:47 (= number of protons)Neutrons N:72Isotopic mass:118.915570(16) u (atomic weight of Silver-119)
Excitation energy: 0 + X keVNuclide mass:118.8897881 u (calculated nuclear mass without electrons)Mass excess:-78.64604 MeVMass defect:1.076080456 u (per nucleus)Nuclear binding energy:1002.36248828 MeV (per nucleus)
8.42321419 MeV (average binding energy per nucleon)Separation energy:S_N = 7.163(15) MeV (first neutron)
S_P = 10.546(15) MeV (first proton)Half-life:2.1(1) sDecay constant λ:0.33007008598093 s^-1Specific activity α:1.684515721549 × 10⁺²¹ Bq g^-1
45527451933.773 Ci g^-1Spin and parity:
(nuclear angular momentum)(7/2+)Year of discovery:1975

Radioactive Decay

Half-life T_½ = 2.1(1) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹⁹Cd	100 %	5.33(40) MeV

Parent Nuclides

Direct parent isotope is: ¹¹⁹Pd.

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
^119mAg	+y keV	6.0(5) s	(1/2-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 72) and isobaric (same nucleon number A = 119) with Silver-119. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 72	Isobar A = 119
40	¹¹²Zr
41	¹¹³Nb
42	¹¹⁴Mo
43	¹¹⁵Tc	¹¹⁹Tc
44	¹¹⁶Ru	¹¹⁹Ru
45	¹¹⁷Rh	¹¹⁹Rh
46	¹¹⁸Pd	¹¹⁹Pd
47	¹¹⁹Ag	¹¹⁹Ag
48	¹²⁰Cd	¹¹⁹Cd
49	¹²¹In	¹¹⁹In
50	¹²²Sn	¹¹⁹Sn
51	¹²³Sb	¹¹⁹Sb
52	¹²⁴Te	¹¹⁹Te
53	¹²⁵I	¹¹⁹I
54	¹²⁶Xe	¹¹⁹Xe
55	¹²⁷Cs	¹¹⁹Cs
56	¹²⁸Ba	¹¹⁹Ba
57	¹²⁹La	¹¹⁹La
58	¹³⁰Ce	¹¹⁹Ce
59	¹³¹Pr
60	¹³²Nd
61	¹³³Pm
62	¹³⁴Sm
63	¹³⁵Eu
64	¹³⁶Gd
65	¹³⁷Tb
66	¹³⁸Dy