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- Iodine
- Phase of Radium
- Rn (Symbol of Radon)
- 62 (Atomic Number of Samarium)
- Superconducting Point of Germanium in °F
Ba
Barium
41 known isotopes (6 stable,
35 radioactive)
114Ba
Mass
113.950718 u
Abundance —
Half-life 0.43 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (99.1%), ECP (20%), α (0.9%)
115Ba
Mass
114.947482 u
Abundance —
Half-life 0.45 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), β⁺p (15%)
116Ba
Mass
115.941621 u
Abundance —
Half-life 1.3 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), β⁺p (3%)
117Ba
Mass
116.938316 u
Abundance —
Half-life 1.75 seconds
Spin/Parity (3/2)
Decay Mode(s) EC/β⁺ (100%), β⁺p (0%), β⁺α (0%)
118Ba
Mass
117.933226 u
Abundance —
Half-life 5.5 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
119Ba
Mass
118.930660 u
Abundance —
Half-life 5.4 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), ECP (25%)
120Ba
Mass
119.926045 u
Abundance —
Half-life 24 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
121Ba
Mass
120.924052 u
Abundance —
Half-life 29.7 seconds
Spin/Parity 5/2(+)
Decay Mode(s) EC/β⁺ (100%)
122Ba
Mass
121.919904 u
Abundance —
Half-life 1.95 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
123Ba
Mass
122.918781 u
Abundance —
Half-life 2.4 m
Spin/Parity 5/2(+)
Decay Mode(s) EC/β⁺ (100%)
124Ba
Mass
123.915094 u
Abundance —
Half-life 11.0 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
125Ba
Mass
124.914472 u
Abundance —
Half-life 3.3 m
Spin/Parity 1/2(+)
Decay Mode(s) EC/β⁺ (100%)
126Ba
Mass
125.911250 u
Abundance —
Half-life 100 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
127Ba
Mass
126.911091 u
Abundance —
Half-life 12.7 m
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
128Ba
Mass
127.908352 u
Abundance —
Half-life 2.43 d
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
129Ba
Mass
128.908683 u
Abundance —
Half-life 2.23 h
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
130Ba Stable
Mass
129.906326 u
Abundance 0.1100%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
131Ba
Mass
130.906946 u
Abundance —
Half-life 11.50 d
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
132Ba
Mass
131.905061 u
Abundance 0.1000%
Half-life 3.0E+21 years
Spin/Parity 0+
Decay Mode(s) Unknown
133Ba
Mass
132.906007 u
Abundance —
Half-life 10.551 years
Spin/Parity 1/2+
Decay Mode(s) Electron capture (100%)
134Ba Stable
Mass
133.904508 u
Abundance 2.4200%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
135Ba Stable
Mass
134.905688 u
Abundance 6.5900%
Half-life Stable
Spin/Parity 3/2+
Decay Mode(s) —
136Ba Stable
Mass
135.904576 u
Abundance 7.8500%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
137Ba Stable
Mass
136.905827 u
Abundance 11.2300%
Half-life Stable
Spin/Parity 3/2+
Decay Mode(s) —
138Ba Stable
Mass
137.905247 u
Abundance 71.7000%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
139Ba
Mass
138.908841 u
Abundance —
Half-life 82.93 m
Spin/Parity 7/2-
Decay Mode(s) β⁻ (100%)
140Ba
Mass
139.910608 u
Abundance —
Half-life 12.751 d
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
141Ba
Mass
140.914404 u
Abundance —
Half-life 18.27 m
Spin/Parity 3/2-
Decay Mode(s) β⁻ (100%)
142Ba
Mass
141.916433 u
Abundance —
Half-life 10.6 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
143Ba
Mass
142.920625 u
Abundance —
Half-life 14.5 seconds
Spin/Parity 5/2-
Decay Mode(s) β⁻ (100%)
144Ba
Mass
143.922955 u
Abundance —
Half-life 11.5 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
145Ba
Mass
144.927518 u
Abundance —
Half-life 4.31 seconds
Spin/Parity 5/2-
Decay Mode(s) β⁻ (100%)
146Ba
Mass
145.930363 u
Abundance —
Half-life 2.21 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
147Ba
Mass
146.935304 u
Abundance —
Half-life 0.894 seconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%), β⁻n (0.06%)
148Ba
Mass
147.938223 u
Abundance —
Half-life 0.612 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (0.4%)
149Ba
Mass
148.943284 u
Abundance —
Half-life 352 milliseconds
Spin/Parity (5/2- 3/2-)
Decay Mode(s) β⁻ (100%), β⁻n (2.2%)
150Ba
Mass
149.946441 u
Abundance —
Half-life 0.259 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
151Ba
Mass
150.951755 u
Abundance —
Half-life 0.167 seconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
152Ba
Mass
151.955330 u
Abundance —
Half-life 0.139 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
153Ba
Mass
152.960848 u
Abundance —
Half-life 0.116 seconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
154Ba
Mass
153.964659 u
Abundance —
Half-life 53 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
Decay mode abbreviations:
β⁻ = Beta minus decay, β⁺ = Beta plus decay, EC = Electron capture, α = Alpha decay
n = Neutron emission, p = Proton emission, SF = Spontaneous fission, IT = Isomeric transition
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