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- Polonium
- Allotropes of Palladium
- Tb (Symbol of Terbium)
- 49 (Atomic Number of Indium)
- Speed Of Sound of Hafnium in mph
Tm
Thulium
38 known isotopes (1 stable,
37 radioactive)
144Tm
Mass
143.976211 u
Abundance —
Half-life 1.9 microseconds
Spin/Parity (10+)
Decay Mode(s) Proton emission (0%)
145Tm
Mass
144.970389 u
Abundance —
Half-life 3.17 microseconds
Spin/Parity (11/2-)
Decay Mode(s) Proton emission (100%)
146Tm
Mass
145.966661 u
Abundance —
Half-life 68 milliseconds
Spin/Parity (5-)
Decay Mode(s) Unknown
147Tm
Mass
146.961380 u
Abundance —
Half-life 0.58 seconds
Spin/Parity 11/2-
Decay Mode(s) EC/β⁺ (85%), Proton emission (15%)
148Tm
Mass
147.958384 u
Abundance —
Half-life 0.7 seconds
Spin/Parity (10+)
Decay Mode(s) EC/β⁺ (100%)
149Tm
Mass
148.952828 u
Abundance —
Half-life 0.9 seconds
Spin/Parity (11/2-)
Decay Mode(s) EC/β⁺ (100%), ECP (0.2%)
150Tm
Mass
149.950090 u
Abundance —
Half-life 2.20 seconds
Spin/Parity (6-)
Decay Mode(s) EC/β⁺ (100%), ECP (1.2%)
151Tm
Mass
150.945494 u
Abundance —
Half-life 4.17 seconds
Spin/Parity (11/2-)
Decay Mode(s) EC/β⁺ (100%)
152Tm
Mass
151.944476 u
Abundance —
Half-life 8.0 seconds
Spin/Parity (2)-
Decay Mode(s) EC/β⁺ (100%)
153Tm
Mass
152.942058 u
Abundance —
Half-life 1.48 seconds
Spin/Parity (11/2-)
Decay Mode(s) α (91%), EC/β⁺ (9%)
154Tm
Mass
153.941570 u
Abundance —
Half-life 8.1 seconds
Spin/Parity (2-)
Decay Mode(s) α (54%), EC/β⁺ (46%)
155Tm
Mass
154.939210 u
Abundance —
Half-life 21.6 seconds
Spin/Parity 11/2-
Decay Mode(s) EC/β⁺ (99.17%), α (0.83%)
156Tm
Mass
155.938986 u
Abundance —
Half-life 83.8 seconds
Spin/Parity 2-
Decay Mode(s) EC/β⁺ (99.936%), α (0.064%)
157Tm
Mass
156.936973 u
Abundance —
Half-life 3.63 m
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
158Tm
Mass
157.936980 u
Abundance —
Half-life 3.98 m
Spin/Parity 2-
Decay Mode(s) EC/β⁺ (100%)
159Tm
Mass
158.934975 u
Abundance —
Half-life 9.13 m
Spin/Parity 5/2+
Decay Mode(s) EC/β⁺ (100%)
160Tm
Mass
159.935264 u
Abundance —
Half-life 9.4 m
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%)
161Tm
Mass
160.933549 u
Abundance —
Half-life 30.2 m
Spin/Parity 7/2+
Decay Mode(s) EC/β⁺ (100%)
162Tm
Mass
161.934001 u
Abundance —
Half-life 21.70 m
Spin/Parity 1-
Decay Mode(s) EC/β⁺ (100%)
163Tm
Mass
162.932658 u
Abundance —
Half-life 1.810 h
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
164Tm
Mass
163.933538 u
Abundance —
Half-life 1.95 m
Spin/Parity 1+
Decay Mode(s) EC/β⁺ (100%), β⁺ (39%)
165Tm
Mass
164.932442 u
Abundance —
Half-life 30.06 h
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
166Tm
Mass
165.933562 u
Abundance —
Half-life 7.70 h
Spin/Parity 2+
Decay Mode(s) EC/β⁺ (100%)
167Tm
Mass
166.932857 u
Abundance —
Half-life 9.25 d
Spin/Parity 1/2+
Decay Mode(s) Electron capture (100%)
168Tm
Mass
167.934178 u
Abundance —
Half-life 93.1 d
Spin/Parity 3+
Decay Mode(s) EC/β⁺ (99.99%), β⁻ (0.01%)
169Tm Stable
Mass
168.934219 u
Abundance 100.0000%
Half-life Stable
Spin/Parity 1/2+
Decay Mode(s) —
170Tm
Mass
169.935807 u
Abundance —
Half-life 128.6 d
Spin/Parity 1-
Decay Mode(s) β⁻ (99.869%), Electron capture (0.131%)
171Tm
Mass
170.936435 u
Abundance —
Half-life 1.92 years
Spin/Parity 1/2+
Decay Mode(s) β⁻ (100%)
172Tm
Mass
171.938407 u
Abundance —
Half-life 63.6 h
Spin/Parity 2-
Decay Mode(s) β⁻ (100%)
173Tm
Mass
172.939607 u
Abundance —
Half-life 8.24 h
Spin/Parity (1/2+)
Decay Mode(s) β⁻ (100%)
174Tm
Mass
173.942174 u
Abundance —
Half-life 5.4 m
Spin/Parity (4)-
Decay Mode(s) β⁻ (100%)
175Tm
Mass
174.943842 u
Abundance —
Half-life 15.2 m
Spin/Parity (1/2+)
Decay Mode(s) β⁻ (100%)
176Tm
Mass
175.946998 u
Abundance —
Half-life 1.85 m
Spin/Parity (4+)
Decay Mode(s) β⁻ (100%)
177Tm
Mass
176.948932 u
Abundance —
Half-life 95 seconds
Spin/Parity (1/2+)
Decay Mode(s) β⁻ (100%)
178Tm
Mass
177.952506 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
179Tm
Mass
178.955018 u
Abundance —
Half-life 160 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
180Tm
Mass
179.959023 u
Abundance —
Half-life 300 nanoseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
181Tm
Mass
180.961954 u
Abundance —
Half-life 160 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
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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