You can search for things like...
- Thulium
- Hardness of Potassium
- Hg (Symbol of Mercury)
- 78 (Atomic Number of Platinum)
- Electron Affinity of Praseodymium in J/mol
Nd
Neodymium
39 known isotopes (5 stable,
34 radioactive)
125Nd
Mass
124.948395 u
Abundance —
Half-life 0.65 seconds
Spin/Parity (5/2)
Decay Mode(s) EC/β⁺ (100%), ECP (0%)
126Nd
Mass
125.942694 u
Abundance —
Half-life Unknown
Spin/Parity 0+
Decay Mode(s) Unknown
127Nd
Mass
126.939978 u
Abundance —
Half-life 1.8 seconds
Spin/Parity —
Decay Mode(s) EC/β⁺ (100%)
128Nd
Mass
127.935018 u
Abundance —
Half-life 5 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
129Nd
Mass
128.933038 u
Abundance —
Half-life 6.7 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), ECP (0%)
130Nd
Mass
129.928506 u
Abundance —
Half-life 13 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
131Nd
Mass
130.927248 u
Abundance —
Half-life 25.4 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), ECP (0%)
132Nd
Mass
131.923321 u
Abundance —
Half-life 94 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
133Nd
Mass
132.922348 u
Abundance —
Half-life 70 seconds
Spin/Parity (7/2+)
Decay Mode(s) EC/β⁺ (100%)
134Nd
Mass
133.918790 u
Abundance —
Half-life 8.5 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
135Nd
Mass
134.918181 u
Abundance —
Half-life 12.4 m
Spin/Parity 9/2(-)
Decay Mode(s) EC/β⁺ (100%)
136Nd
Mass
135.914976 u
Abundance —
Half-life 50.65 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
137Nd
Mass
136.914563 u
Abundance —
Half-life 38.5 m
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
138Nd
Mass
137.911951 u
Abundance —
Half-life 5.04 h
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
139Nd
Mass
138.911951 u
Abundance —
Half-life 29.7 m
Spin/Parity 3/2+
Decay Mode(s) EC/β⁺ (100%)
140Nd
Mass
139.909546 u
Abundance —
Half-life 3.37 d
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
141Nd
Mass
140.909617 u
Abundance —
Half-life 2.49 h
Spin/Parity 3/2+
Decay Mode(s) EC/β⁺ (100%)
142Nd Stable
Mass
141.907729 u
Abundance 27.1530%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
143Nd Stable
Mass
142.909820 u
Abundance 12.1730%
Half-life Stable
Spin/Parity 7/2-
Decay Mode(s) —
144Nd
Mass
143.910093 u
Abundance 23.7980%
Half-life 2.29E+15 years
Spin/Parity 0+
Decay Mode(s) α (100%)
145Nd Stable
Mass
144.912579 u
Abundance 8.2930%
Half-life Stable
Spin/Parity 7/2-
Decay Mode(s) —
146Nd Stable
Mass
145.913122 u
Abundance 17.1890%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
147Nd
Mass
146.916106 u
Abundance —
Half-life 11.03 d
Spin/Parity 5/2-
Decay Mode(s) β⁻ (100%)
148Nd Stable
Mass
147.916899 u
Abundance 5.7560%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
149Nd
Mass
148.920155 u
Abundance —
Half-life 1.726 h
Spin/Parity 5/2-
Decay Mode(s) β⁻ (100%)
150Nd
Mass
149.920901 u
Abundance 5.6380%
Half-life 0.91E19 years
Spin/Parity 0+
Decay Mode(s) 2B- (100%)
151Nd
Mass
150.923839 u
Abundance —
Half-life 12.44 m
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
152Nd
Mass
151.924691 u
Abundance —
Half-life 11.4 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
153Nd
Mass
152.927718 u
Abundance —
Half-life 31.6 seconds
Spin/Parity (3/2)-
Decay Mode(s) β⁻ (100%)
154Nd
Mass
153.929597 u
Abundance —
Half-life 25.9 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
155Nd
Mass
154.933136 u
Abundance —
Half-life 8.9 seconds
Spin/Parity (3/2-)
Decay Mode(s) β⁻ (100%)
156Nd
Mass
155.935370 u
Abundance —
Half-life 5.26 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
157Nd
Mass
156.939351 u
Abundance —
Half-life 1.15 seconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%)
158Nd
Mass
157.942206 u
Abundance —
Half-life 0.820 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
159Nd
Mass
158.946619 u
Abundance —
Half-life 0.485 seconds
Spin/Parity (7/2+)
Decay Mode(s) β⁻ (100%)
160Nd
Mass
159.949839 u
Abundance —
Half-life 439 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
161Nd
Mass
160.954664 u
Abundance —
Half-life 0.22 seconds
Spin/Parity (1/2-)
Decay Mode(s) β⁻ (100%)
162Nd
Mass
161.958121 u
Abundance —
Half-life 0.31 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
163Nd
Mass
162.963414 u
Abundance —
Half-life Unknown
Spin/Parity —
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7