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- Rubidium
- Neutron Cross Section of Potassium
- Ba (Symbol of Barium)
- 107 (Atomic Number of Bohrium)
- Ionization Energies of Lead in J/mol
Sr
Strontium
36 known isotopes (4 stable,
32 radioactive)
73Sr
Mass
72.965700 u
Abundance —
Half-life 25 milliseconds
Spin/Parity —
Decay Mode(s) EC/β⁺ (100%)
74Sr
Mass
73.956170 u
Abundance —
Half-life 27 milliseconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
75Sr
Mass
74.949953 u
Abundance —
Half-life 88 milliseconds
Spin/Parity (3/2-)
Decay Mode(s) EC/β⁺ (100%), ECP (5.2%)
76Sr
Mass
75.941763 u
Abundance —
Half-life 7.89 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), ECP (0.000034%)
77Sr
Mass
76.937945 u
Abundance —
Half-life 9.0 seconds
Spin/Parity 5/2(+)
Decay Mode(s) EC/β⁺ (100%), ECP (0.08%)
78Sr
Mass
77.932180 u
Abundance —
Half-life 160 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
79Sr
Mass
78.929705 u
Abundance —
Half-life 2.25 m
Spin/Parity 3/2(-)
Decay Mode(s) EC/β⁺ (100%)
80Sr
Mass
79.924518 u
Abundance —
Half-life 106.3 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
81Sr
Mass
80.923211 u
Abundance —
Half-life 22.3 m
Spin/Parity 1/2-
Decay Mode(s) EC/β⁺ (100%)
82Sr
Mass
81.918400 u
Abundance —
Half-life 25.35 d
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
83Sr
Mass
82.917554 u
Abundance —
Half-life 32.41 h
Spin/Parity 7/2+
Decay Mode(s) EC/β⁺ (100%)
84Sr Stable
Mass
83.913419 u
Abundance 0.5600%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
85Sr
Mass
84.912932 u
Abundance —
Half-life 64.849 d
Spin/Parity 9/2+
Decay Mode(s) Electron capture (100%)
86Sr Stable
Mass
85.909261 u
Abundance 9.8600%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
87Sr Stable
Mass
86.908877 u
Abundance 7.0000%
Half-life Stable
Spin/Parity 9/2+
Decay Mode(s) —
88Sr Stable
Mass
87.905612 u
Abundance 82.5800%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
89Sr
Mass
88.907451 u
Abundance —
Half-life 50.563 d
Spin/Parity 5/2+
Decay Mode(s) β⁻ (100%)
90Sr
Mass
89.907728 u
Abundance —
Half-life 28.91 years
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
91Sr
Mass
90.910196 u
Abundance —
Half-life 9.65 h
Spin/Parity 5/2+
Decay Mode(s) β⁻ (100%)
92Sr
Mass
91.911038 u
Abundance —
Half-life 2.611 h
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
93Sr
Mass
92.914024 u
Abundance —
Half-life 7.43 m
Spin/Parity 5/2+
Decay Mode(s) β⁻ (100%)
94Sr
Mass
93.915356 u
Abundance —
Half-life 75.3 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
95Sr
Mass
94.919358 u
Abundance —
Half-life 23.90 seconds
Spin/Parity 1/2+
Decay Mode(s) β⁻ (100%)
96Sr
Mass
95.921719 u
Abundance —
Half-life 1.07 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
97Sr
Mass
96.926376 u
Abundance —
Half-life 429 milliseconds
Spin/Parity 1/2+
Decay Mode(s) β⁻ (100%), β⁻n (0.05%)
98Sr
Mass
97.928693 u
Abundance —
Half-life 0.653 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (0.23%)
99Sr
Mass
98.932884 u
Abundance —
Half-life 0.269 seconds
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%), β⁻n (0.1%)
100Sr
Mass
99.935783 u
Abundance —
Half-life 200 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (1.11%)
101Sr
Mass
100.940606 u
Abundance —
Half-life 118 milliseconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%), β⁻n (2.37%)
102Sr
Mass
101.944005 u
Abundance —
Half-life 69 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (5.5%)
103Sr
Mass
102.949243 u
Abundance —
Half-life 53 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
104Sr
Mass
103.953022 u
Abundance —
Half-life 53 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
105Sr
Mass
104.959001 u
Abundance —
Half-life 39 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
106Sr
Mass
105.963177 u
Abundance —
Half-life 20 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
107Sr
Mass
106.969672 u
Abundance —
Half-life 395 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
108Sr
Mass
— u
Abundance —
Half-life Unknown
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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