Bromine-83

Properties and data of the isotope ⁸³Br.

Content

General data

Name of the isotope:Bromine-83; Br-83Symbol:⁸³Br or 8335BrMass number A:83 (= number of nucleons)Atomic number Z:35 (= number of protons)Neutrons N:48Isotopic mass:82.915175(4) u (atomic weight of Bromine-83)Nuclide mass:82.8959754 u (calculated nuclear mass without electrons)Mass excess:-79.01398 MeVMass defect:0.774617088 u (per nucleus)Nuclear binding energy:721.55116977 MeV (per nucleus)
8.69338759 MeV (average binding energy per nucleon)Separation energy:S_N = 9.586(4)8.709(4) MeV (first neutron)Half-life:2.374(4) hDecay constant λ:8.110399472993 × 10^-5 s^-1Specific activity α:5.956337567893 × 10⁺¹⁷ Bq g^-1
16098209.642955 Ci g^-1Spin and parity:
(nuclear angular momentum)3/2-Year of discovery:1937

Radioactive Decay

Half-life T_½ = 2.374(4) h (hours) respectively 8.5464 × 10³ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁸³Kr	100 %	0.977(4) Mev

Parent Nuclides

Direct parent isotope is: ⁸³Se.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 48) and isobaric (same nucleon number A = 83) with Bromine-83. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 48	Isobar A = 83
26	⁷⁴Fe
27	⁷⁵Co
28	⁷⁶Ni
29	⁷⁷Cu
30	⁷⁸Zn	⁸³Zn
31	⁷⁹Ga	⁸³Ga
32	⁸⁰Ge	⁸³Ge
33	⁸¹As	⁸³As
34	⁸²Se	⁸³Se
35	⁸³Br	⁸³Br
36	⁸⁴Kr	⁸³Kr
37	⁸⁵Rb	⁸³Rb
38	⁸⁶Sr	⁸³Sr
39	⁸⁷Y	⁸³Y
40	⁸⁸Zr	⁸³Zr
41	⁸⁹Nb	⁸³Nb
42	⁹⁰Mo	⁸³Mo
43	⁹¹Tc
44	⁹²Ru
45	⁹³Rh
46	⁹⁴Pd
47	⁹⁵Ag
48	⁹⁶Cd
49	⁹⁷In