Bismuth-196m1

Properties and data of the isotope ^196m1Bi.

Contents

General data

Name of the isotope:Bismuth-196m1; Bi-196m1Symbol:^196m1Bi or 196m183BiMass number A:196 (= number of nucleons)Atomic number Z:83 (= number of protons)Neutrons N:113Isotopic mass:195.980667(26) u (atomic weight of Bismuth-196m1)
Excitation energy: 169(4) keVNuclide mass:195.9351401 u (calculated nuclear mass without electrons)Mass excess:-18.00857 MeVMass defect:1.647946164 u (per nucleus)Nuclear binding energy:1535.05196409 MeV (per nucleus)
7.83189778 MeV (average binding energy per nucleon)Half-life:0.6(5) sDecay constant λ:1.1552453009332 s^-1Specific activity α:3.567717912820 × 10⁺²¹ Bq g^-1
96424808454.608 Ci g^-1Spin and parity:
(nuclear angular momentum)(7+)

Radioactive Decay

Half-life T_½ = 0.6(5) s respectively 6 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	¹⁹⁶Bi	?
EC/β⁺	¹⁹⁶Pb	?

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
¹⁹⁶Bi		308(12) s	(3+)
^196m2Bi	271(5) keV	240(3) s	(10-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 113) and isobaric (same nucleon number A = 196) with Bismuth-196m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 113	Isobar A = 196
70	¹⁸³Yb
71	¹⁸⁴Lu
72	¹⁸⁵Hf
73	¹⁸⁶Ta
74	¹⁸⁷W	¹⁹⁶W
75	¹⁸⁸Re	¹⁹⁶Re
76	¹⁸⁹Os	¹⁹⁶Os
77	¹⁹⁰Ir	¹⁹⁶Ir
78	¹⁹¹Pt	¹⁹⁶Pt
79	¹⁹²Au	¹⁹⁶Au
80	¹⁹³Hg	¹⁹⁶Hg
81	¹⁹⁴Tl	¹⁹⁶Tl
82	¹⁹⁵Pb	¹⁹⁶Pb
83	¹⁹⁶Bi	¹⁹⁶Bi
84	¹⁹⁷Po	¹⁹⁶Po
85	¹⁹⁸At	¹⁹⁶At
86	¹⁹⁹Rn	¹⁹⁶Rn
87	²⁰⁰Fr
88	²⁰¹Ra