Atomic Number | 62 |
---|---|
Atomic Weight | 150.36 |
mass number | 152 |
Group | |
---|---|
Period | 6 |
Block | f |
proton | 62 p+ |
---|---|
neutron | 90 n0 |
elettron | 62 e- |
Atomic Radius | |
---|---|
molar volume | |
covalent radius | |
Metallic Radius | |
ionic radius | |
Crystal Radius | |
Van der Waals radius | |
densità |
enerġija | |
---|---|
proton affinity | |
electron affinity | |
ionization energy | |
enthalpy of vaporization | |
enthalpy of fusion | |
standard enthalpy of formation | |
elettron | |
electron shell | 2, 8, 18, 24, 8, 2 |
valence electron | 2 ⓘ |
electron configuration | [Xe] 4f6 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f6 6s2 |
oxidation number | 0, 1, 2, 3 |
electronegativity |
1.17
|
Electrophilicity Index | |
fundamental state of matter | |
phase of matter | Solid |
gaseous state of matter | |
Boiling Point | |
Melting Point | |
critical pressure | |
critical temperature | |
triple point | |
appearance | |
kulur | Silver
|
appearance | silvery white |
refractive index | |
thermodynamic material property | |
Thermal Conductivity | |
thermal expansion | |
molar heat capacity | |
Specific Heat Capacity | |
heat capacity ratio | |
electrical properties | |
type | Conductor |
electrical conductivity | |
electrical resistivity | |
superconductivity | |
magnetism | |
type | paramagnetic |
magnetic susceptibility (Mass) | 0.000000111 m³/Kg
|
magnetic susceptibility (Molar) | 0.00000001669 m³/mol
|
magnetic susceptibility (Volume) | 0.00081618
|
magnetic ordering | |
Curie temperature | |
Néel temperature | |
structure | |
Crystal Structure | Simple Trigonal (RHL) |
lattice constant | |
Lattice Angles | π/2, π/2, 2 π/3 |
mechanical property | |
hardness | |
bulk modulus | |
shear modulus | |
Young's modulus | |
Poisson's ratio | 0.27
|
speed of sound | |
classification | |
Category | Lanthanides, Lanthanides |
CAS Group | |
IUPAC Group | |
Glawe Number | 27 |
Mendeleev Number | 23 |
Pettifor Number | 28 |
Geochemical Class | rare earth & related |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 5,900
|
Neutron Mass Absorption | 4.7
|
quantum number | 7F0 |
space group | 166 (R_3m) |
Stable Isotopes | 2 |
---|---|
Unstable Isotopes | 39 |
Natural Isotopes | 7 |
mass number | 128 |
---|---|
neutron number | 66 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 129 |
---|---|
neutron number | 67 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 550 ± 100 ms
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1999 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 130 |
---|---|
neutron number | 68 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1999 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 131 |
---|---|
neutron number | 69 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.2 ± 0.2 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1986 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 132 |
---|---|
neutron number | 70 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4 ± 0.3 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1989 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 133 |
---|---|
neutron number | 71 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.89 ± 0.16 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1977 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 134 |
---|---|
neutron number | 72 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9.5 ± 0.8 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1977 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 135 |
---|---|
neutron number | 73 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 10.3 ± 0.5 s
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1977 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.02% |
mass number | 136 |
---|---|
neutron number | 74 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 47 ± 2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1982 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 137 |
---|---|
neutron number | 75 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 45 ± 1 s
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1986 |
parity | - |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 138 |
---|---|
neutron number | 76 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3.1 ± 0.2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1982 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 139 |
---|---|
neutron number | 77 |
Relative Atomic Mass | |
g-factor | -1.06 ± 0.04
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.57 ± 0.1 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1971 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 140 |
---|---|
neutron number | 78 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 14.82 ± 0.12 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 141 |
---|---|
neutron number | 79 |
Relative Atomic Mass | |
g-factor | -1.48 ± 0.04
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 10.2 ± 0.2 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 142 |
---|---|
neutron number | 80 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 72.49 ± 0.05 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1959 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
e+ (positron emission) | 5% |
mass number | 143 |
---|---|
neutron number | 81 |
Relative Atomic Mass | |
g-factor | 0.67333333333333 ± 0.013333333333333
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 8.75 ± 0.06 m
|
spin | 3/2 |
nuclear quadrupole moment | 0.4 ± 0.2
|
time of discovery or invention | 1956 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
e+ (positron emission) | 40% |
ϵ (electron capture) | 60% |
mass number | 144 |
---|---|
neutron number | 82 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 3.08 ± 0.04
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
decay mode | intensity |
---|---|
2β+ (double β+ decay) |
mass number | 145 |
---|---|
neutron number | 83 |
Relative Atomic Mass | |
g-factor | -0.32 ± 0.0031428571428571
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 340 ± 3 d
|
spin | 7/2 |
nuclear quadrupole moment | -0.6 ± 0.07
|
time of discovery or invention | 1947 |
parity | - |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 146 |
---|---|
neutron number | 84 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 68 ± 7 My
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1953 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 147 |
---|---|
neutron number | 85 |
Relative Atomic Mass | |
g-factor | -0.23114285714286 ± 0.0004
|
natural abundance | 15 ± 0.14
|
radioactivity | ☢️ radioactive element |
half-life | 106.6 ± 0.5 Gy
|
spin | 7/2 |
nuclear quadrupole moment | -0.26 ± 0.03
|
time of discovery or invention | 1933 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 148 |
---|---|
neutron number | 86 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 11.25 ± 0.09
|
radioactivity | ☢️ radioactive element |
half-life | 6.3 ± 1.3 Py
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 149 |
---|---|
neutron number | 87 |
Relative Atomic Mass | |
g-factor | -0.19077142857143 ± 0.00031428571428571
|
natural abundance | 13.82 ± 0.1
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 7/2 |
nuclear quadrupole moment | 0.075 ± 0.008
|
time of discovery or invention | 1933 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) |
mass number | 150 |
---|---|
neutron number | 88 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 7.37 ± 0.09
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1934 |
parity | + |
mass number | 151 |
---|---|
neutron number | 89 |
Relative Atomic Mass | |
g-factor | -0.1442 ± 0.00024
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 94.6 ± 0.6 y
|
spin | 5/2 |
nuclear quadrupole moment | 0.71 ± 0.07
|
time of discovery or invention | 1947 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 152 |
---|---|
neutron number | 90 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 26.74 ± 0.09
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
mass number | 153 |
---|---|
neutron number | 91 |
Relative Atomic Mass | |
g-factor | -0.014 ± 0.002
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 46.2846 ± 0.0023 h
|
spin | 3/2 |
nuclear quadrupole moment | 1.3 ± 0.12
|
time of discovery or invention | 1938 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 154 |
---|---|
neutron number | 92 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 22.74 ± 0.14
|
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
decay mode | intensity |
---|---|
2β− (double β− decay) |
mass number | 155 |
---|---|
neutron number | 93 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 22.18 ± 0.06 m
|
spin | 3/2 |
nuclear quadrupole moment | 1.13 ± 0.13
|
time of discovery or invention | 1951 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 156 |
---|---|
neutron number | 94 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9.4 ± 0.2 h
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1951 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 157 |
---|---|
neutron number | 95 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 8.03 ± 0.07 m
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1973 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 158 |
---|---|
neutron number | 96 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5.3 ± 0.03 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1970 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 159 |
---|---|
neutron number | 97 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 11.37 ± 0.15 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1986 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 160 |
---|---|
neutron number | 98 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9.6 ± 0.3 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1986 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 161 |
---|---|
neutron number | 99 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.8 ± 0.4 s
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1998 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 162 |
---|---|
neutron number | 100 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.7 ± 0.3 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2005 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 163 |
---|---|
neutron number | 101 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.3 ± 0.5 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2012 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 164 |
---|---|
neutron number | 102 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.43 ± 0.24 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2012 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 165 |
---|---|
neutron number | 103 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 980 ± 210 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2012 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 166 |
---|---|
neutron number | 104 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 800 ± 630 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2017 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 167 |
---|---|
neutron number | 105 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2018 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
mass number | 168 |
---|---|
neutron number | 106 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2018 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
discoverer or inventor | Paul Émile Lecoq de Boisbaudran |
---|---|
location of discovery | France |
time of discovery or invention | 1879 |
etimoloġija | Named after the mineral samarskite. |
pronunciation | seh-MER-i-em (Ingliż) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (ocean) | |
natural abundance (human body) | |
natural abundance (meteoroid) | 0.000017 %
|
natural abundance (Xemx) | 0.0000001 %
|
Abundance in Universe | 0.0000005 %
|
1 | s | 1.2217 |
2 | p | 4.269 |
2 | s | 16.2652 |
3 | d | 13.7711 |
3 | p | 19.5815 |
3 | s | 19.9736 |
4 | d | 33.7604 |
4 | f | 38.4684 |
4 | p | 30.912 |
4 | s | 29.7076 |
5 | p | 45.719 |
5 | s | 43.751 |
6 | s | 53.9882 |