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Periodic Table of Elements

Br - Bromine

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Nuclides / Isotopes

Nuc- lide	Atomic Mass	NN	Abun %	Spin	Half Life	DM	DT	BR %	Decay Energy (MeV)
Br67	66.965	32	Syn
Br68	67.958	33	Syn	3+	<1.5us
Br69	68.95	34	Syn		<100ns	P	Se68
Br70	69.945	35	Syn		79.1ms	ε	Se70		10.400
Br71	70.939	36	Syn	5/2-	21.4s	ε	Se71		6.500
Br72	71.936	37	Syn	3+	78.6s	ε	Se72		8.700
meta state 0.101MeV			Syn	1-	10.6s	IT	Br72	~100	0.101
					10.6s	ε	Se72		8.801
Br73	72.932	38	Syn	1/2-	3.4m	ε	Se73		4.660
Br74	73.9299	39	Syn	0-	25.4m	ε	Se74		6.907
meta state 0.014MeV			Syn	4+	46m	ε	Se74		6.921
Br75	74.9258	40	Syn	3/2-	96.7m	ε	Se75		3.030
Br76	75.9245	41	Syn	1-	16.2h	ε	Se76		4.963
meta state 0.103MeV			Syn	4+	1.31s	IT		>99.4	0.103
					1.31s	ε	Se76	<0.6	5.066
Br77	76.9214	42	Syn	3/2-	57.036h	ε	Se77		1.365
meta state 0.105MeV			Syn	9/2+	4.28m	IT			0.106
Br78	77.9212	43	Syn	1+	6.46m	ε	Se78	>=99.99	3.574
					6.46m	β^-	Kr78	<=0.01	0.706
Br79	78.9183	44	50.69	3/2-	Stable
meta state 0.208MeV			Syn	9/2+	4.86s	IT			0.208
Br80	79.9185	45	Syn	1+	17.68m	β^-	Kr80	91.7	2.004
					17.68m	ε	Se80	8.3	1.871
meta state 0.086MeV			Syn	5-	4.4205MeV	IT			0.086
Br81	80.9163	46	49.31	3/2-	Stable
Br82	81.9168	47	Syn	5-	35.3h	β^-	Kr82		3.093
meta state 0.045MeV			Syn	2-	6.13m	IT		97.6	0.046
					6.13m	β^-	Kr82	2.4	3.139
Br83	82.9152	48	Syn	3/2-	2.4h	β^-	Kr83		0.972
Br84	83.9165	49	Syn	2-	31.8m	β^-	Kr84		4.650
meta state 0.320MeV			Syn	6-	6m	β^-	Kr84		4.970
Br85	84.9156	50	Syn	3/2-	2.9m	β^-	Kr85		2.870
Br86	85.9188	51	Syn	2-	55.1s	β^-	Kr86		7.626
Br87	86.9207	52	Syn	3/2-	55.6s	β^- + N	Kr86	2.52	1.337
					55.6s	β^-	Kr87		6.853
Br88	87.9241	53	Syn	1, 2-	16.34s	β^- + N	Kr87	6.58	1.910
					16.34s	β^-	Kr88		8.960
Br89	88.9264	54	Syn	2-, 5/2-	4.348s	β^- + N	Kr88	13.8	3.050
					4.348s	β^-	Kr89		8.160
Br90	89.9306	55	Syn		1.91s	β^- + N	Kr89	25.2	4.040
					1.91s	β^-	Kr90		10.350
Br91	90.934	56	Syn		0.541s	β^- + N	Kr90	20	5.340
					0.541s	β^-	Kr91		9.800
Br92	91.9393	57	Syn	2-	0.343s	β^- + N	Kr91	33.1	6.660
					0.343s	β^-	Kr92		12.200
Br93	92.943	58	Syn	5/2-	102ms	β^- + N	Kr92	10	7.700
					102ms	β^-	Kr93		11.000
Br94	93.949	59	Syn		70ms	β^- + N	Kr93	30
					70ms	β^-	Kr94
Br95		60	Syn	3/2-		β^-

Nuclide	Potential Parent Nuclides
Br67	None known
Br68	None known
Br69	None known
Br70	None known
Br71	Kr71 (Syn)
Br72	Br72m (Syn) Kr72 (Syn)
meta state 0.101MeV	None known
Br73	Kr73 (Syn)
Br74	Kr74 (Syn)
meta state 0.014MeV	None known
Br75	Kr75 (Syn)
Br76	Kr76 (Syn)
meta state 0.103MeV	None known
Br77	Kr77 (Syn)
meta state 0.105MeV	None known
Br78	None known
Br79	Kr79 (Syn) Se79 (Syn) Se79m (Syn)
meta state 0.208MeV	None known
Br80	None known
meta state 0.086MeV	None known
Br81	Kr81 (Syn) Kr81m (Syn) Se81 (Syn) Se81m (Syn)
Br82	None known
meta state 0.045MeV	None known
Br83	Se83 (Syn) Se83m (Syn)
Br84	Se84 (Syn)
meta state 0.320MeV	None known
Br85	Se85 (Syn)
Br86	Se86 (Syn) Se87 (Syn)
Br87	Se87 (Syn) Se88 (Syn)
Br88	Se88 (Syn) Se89 (Syn)
Br89	Se89 (Syn)
Br90	Se91 (Syn)
Br91	Se91 (Syn)
Br92	None known
Br93	None known
Br94	None known
Br95	None known
Key: NN = Number of Neutrons Abun % = Natural Abundance (as a percentage) Syn = Synthetic Nuclide (does not occur in nature) DM = Decay Mode α = Alpha emission β^- = Beta emission β^- β^- = Double beta decay β⁺ = Positron emission ε = Electron Capture IT = Isomeric Transition N = Neutron emission P = Proton emission SF = Spontaneous Fission DT = Decays To BR % = Branch Ratio (as a percentage)

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References

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Periodic Table of Elements

Br - Bromine

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Nuclides / Isotopes

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