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- Rubidium
- Melting Point of Barium
- Al (Symbol of Aluminum)
- 37 (Atomic Number of Rubidium)
- Lifetime of Nobelium in s
Fe
Iron
32 known isotopes (4 stable,
28 radioactive)
45Fe
Mass
45.015467 u
Abundance —
Half-life 1.89 milliseconds
Spin/Parity (3/2+)
Decay Mode(s) Two-proton emission (57%), EC/β⁺ (43%), β⁺p (43%)
46Fe
Mass
46.001299 u
Abundance —
Half-life 13.0 milliseconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), ECP (78.7%)
47Fe
Mass
46.992346 u
Abundance —
Half-life 21.8 milliseconds
Spin/Parity (7/2-)
Decay Mode(s) EC/β⁺ (100%), ECP (0%)
48Fe
Mass
47.980667 u
Abundance —
Half-life 45.5 milliseconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), ECP (15.3%)
49Fe
Mass
48.973429 u
Abundance —
Half-life 64.7 milliseconds
Spin/Parity (7/2-)
Decay Mode(s) EC/β⁺ (100%), β⁺p (56.7%)
50Fe
Mass
49.962988 u
Abundance —
Half-life 152.0 milliseconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), ECP (0%)
51Fe
Mass
50.956855 u
Abundance —
Half-life 305 milliseconds
Spin/Parity 5/2-
Decay Mode(s) EC/β⁺ (100%)
52Fe
Mass
51.948113 u
Abundance —
Half-life 8.275 h
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
53Fe
Mass
52.945306 u
Abundance —
Half-life 8.51 m
Spin/Parity 7/2-
Decay Mode(s) EC/β⁺ (100%)
54Fe Stable
Mass
53.939608 u
Abundance 5.8450%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
55Fe
Mass
54.938291 u
Abundance —
Half-life 2.744 years
Spin/Parity 3/2-
Decay Mode(s) Electron capture (100%)
56Fe Stable
Mass
55.934936 u
Abundance 91.7540%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
57Fe Stable
Mass
56.935392 u
Abundance 2.1190%
Half-life Stable
Spin/Parity 1/2-
Decay Mode(s) —
58Fe Stable
Mass
57.933274 u
Abundance 0.2820%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
59Fe
Mass
58.934873 u
Abundance —
Half-life 44.490 d
Spin/Parity 3/2-
Decay Mode(s) β⁻ (100%)
60Fe
Mass
59.934070 u
Abundance —
Half-life 2.62E+6 years
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
61Fe
Mass
60.936746 u
Abundance —
Half-life 5.98 m
Spin/Parity (3/2-)
Decay Mode(s) β⁻ (100%)
62Fe
Mass
61.936792 u
Abundance —
Half-life 68 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
63Fe
Mass
62.940273 u
Abundance —
Half-life 6.1 seconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%)
64Fe
Mass
63.940988 u
Abundance —
Half-life 2.0 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
65Fe
Mass
64.945015 u
Abundance —
Half-life 0.81 seconds
Spin/Parity (1/2-)
Decay Mode(s) β⁻ (100%)
66Fe
Mass
65.946250 u
Abundance —
Half-life 440 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
67Fe
Mass
66.950930 u
Abundance —
Half-life 0.6 seconds
Spin/Parity (5/2+)
Decay Mode(s) β⁻ (100%)
68Fe
Mass
67.952875 u
Abundance —
Half-life 188 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (0%)
69Fe
Mass
68.957918 u
Abundance —
Half-life 110 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
70Fe
Mass
69.960397 u
Abundance —
Half-life 65 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
71Fe
Mass
70.965722 u
Abundance —
Half-life 35.7 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
72Fe
Mass
71.968599 u
Abundance —
Half-life 150 nanoseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (27.6%)
73Fe
Mass
72.974246 u
Abundance —
Half-life 12.9 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
74Fe
Mass
73.977821 u
Abundance —
Half-life 8.2 milliseconds
Spin/Parity 0+
Decay Mode(s) Unknown
75Fe
Mass
74.984219 u
Abundance —
Half-life 620 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
76Fe
Mass
75.988631 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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