Atomic Number | 64 |
---|---|
Atomic Weight | 157.25 |
mass number | 158 |
Group | |
---|---|
Period | 6 |
Block | f |
proton | 64 p+ |
---|---|
neutron | 94 n0 |
electron | 64 e- |
Atomic Radius | |
---|---|
molar volume | |
covalent radius | |
Metallic Radius | |
ionic radius | |
Crystal Radius | |
Van der Waals radius | |
density |
energy | |
---|---|
proton affinity | |
electron affinity | |
ionization energy | |
enthalpy of vaporization | |
enthalpy of fusion | |
standard enthalpy of formation | |
electron | |
electron shell | 2, 8, 18, 25, 9, 2 |
valence electron | 2 ⓘ |
electron configuration | [Xe] 4f7 5d1 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f7 5d1 6s2 |
oxidation number | 0, 1, 2, 3 |
electronegativity |
1.2
|
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 | |
color | 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 | ferromagnetic |
magnetic susceptibility (Mass) | |
magnetic susceptibility (Molar) | |
magnetic susceptibility (Volume) | |
magnetic ordering | |
Curie temperature | |
Néel temperature | |
structure | |
Crystal Structure | Simple Hexagonal (HEX) |
lattice constant | |
Lattice Angles | π/2, π/2, 2 π/3 |
mechanical property | |
hardness | |
bulk modulus | |
shear modulus | |
Young's modulus | |
Poisson's ratio | 0.26
|
speed of sound | |
classification | |
Category | Lanthanides, Lanthanides |
CAS Group | |
IUPAC Group | |
Glawe Number | 26 |
Mendeleev Number | 27 |
Pettifor Number | 27 |
Geochemical Class | rare earth & related |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 49,000
|
Neutron Mass Absorption | 7.3
|
quantum number | 9D2 |
space group | 194 (P63/mmc) |
Stable Isotopes | 5 |
---|---|
Unstable Isotopes | 35 |
Natural Isotopes | 7 |
mass number | 133 |
---|---|
neutron number | 69 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 134 |
---|---|
neutron number | 70 |
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 | 135 |
---|---|
neutron number | 71 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.1 ± 0.2 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1996 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 2% |
mass number | 136 |
---|---|
neutron number | 72 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2000 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | |
β+ p (β+-delayed proton emission) |
mass number | 137 |
---|---|
neutron number | 73 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.2 ± 0.2 s
|
spin | 7/2 |
nuclear quadrupole moment | |
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 | 138 |
---|---|
neutron number | 74 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.7 ± 0.9 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1985 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 139 |
---|---|
neutron number | 75 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5.7 ± 0.3 s
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1983 |
parity | - |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) |
mass number | 140 |
---|---|
neutron number | 76 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 15.8 ± 0.4 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1985 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
e+ (positron emission) | 67% |
ϵ (electron capture) | 33% |
mass number | 141 |
---|---|
neutron number | 77 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 14 ± 4 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1986 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.03% |
mass number | 142 |
---|---|
neutron number | 78 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 70.2 ± 0.6 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1986 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
ϵ (electron capture) | 52% |
e+ (positron emission) | 48% |
mass number | 143 |
---|---|
neutron number | 79 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 39 ± 2 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1975 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | |
β+α (β+-delayed α emission) |
mass number | 144 |
---|---|
neutron number | 80 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.47 ± 0.06 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1968 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 145 |
---|---|
neutron number | 81 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 23 ± 0.4 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1959 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 146 |
---|---|
neutron number | 82 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 48.27 ± 0.09 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1957 |
parity | + |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 147 |
---|---|
neutron number | 83 |
Relative Atomic Mass | |
g-factor | 0.29142857142857 ± 0.025714285714286
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 38.06 ± 0.12 h
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1957 |
parity | - |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 148 |
---|---|
neutron number | 84 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 71.3 ± 1 y
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1953 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
2β+ (double β+ decay) |
mass number | 149 |
---|---|
neutron number | 85 |
Relative Atomic Mass | |
g-factor | 0.25142857142857 ± 0.011428571428571
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9.28 ± 0.1 d
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1951 |
parity | - |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
α (α emission) | 4.3% |
mass number | 150 |
---|---|
neutron number | 86 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.79 ± 0.08 My
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1953 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
2β+ (double β+ decay) |
mass number | 151 |
---|---|
neutron number | 87 |
Relative Atomic Mass | |
g-factor | 0.22 ± 0.017142857142857
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 123.9 ± 1 d
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1950 |
parity | - |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
α (α emission) | 1.1% |
mass number | 152 |
---|---|
neutron number | 88 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0.2 ± 0.03
|
radioactivity | ☢️ radioactive element |
half-life | 108 ± 8 Ty
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1938 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
2β+ (double β+ decay) |
mass number | 153 |
---|---|
neutron number | 89 |
Relative Atomic Mass | |
g-factor | 0.25333333333333 ± 0.053333333333333
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 240.6 ± 0.7 d
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1947 |
parity | - |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 154 |
---|---|
neutron number | 90 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 2.18 ± 0.02
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1938 |
parity | + |
mass number | 155 |
---|---|
neutron number | 91 |
Relative Atomic Mass | |
g-factor | -0.17273333333333 ± 0.00026666666666667
|
natural abundance | 14.8 ± 0.09
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | 1.27 ± 0.03
|
time of discovery or invention | 1933 |
parity | - |
mass number | 156 |
---|---|
neutron number | 92 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 20.47 ± 0.03
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
mass number | 157 |
---|---|
neutron number | 93 |
Relative Atomic Mass | |
g-factor | -0.22653333333333 ± 0.0004
|
natural abundance | 15.65 ± 0.04
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 3/2 |
nuclear quadrupole moment | 1.35 ± 0.03
|
time of discovery or invention | 1933 |
parity | - |
mass number | 158 |
---|---|
neutron number | 94 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 24.84 ± 0.08
|
radioactivity | stable isotope |
half-life | Not Radioactive ☢️ |
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1933 |
parity | + |
mass number | 159 |
---|---|
neutron number | 95 |
Relative Atomic Mass | |
g-factor | -0.29333333333333 ± 0.02
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 18.479 ± 0.004 h
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1949 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 160 |
---|---|
neutron number | 96 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 21.86 ± 0.03
|
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 | 161 |
---|---|
neutron number | 97 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3.646 ± 0.003 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1949 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 162 |
---|---|
neutron number | 98 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 8.4 ± 0.2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 163 |
---|---|
neutron number | 99 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 68 ± 3 s
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1982 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 164 |
---|---|
neutron number | 100 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 45 ± 3 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1988 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 165 |
---|---|
neutron number | 101 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 11.6 ± 1 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1998 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 166 |
---|---|
neutron number | 102 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5.1 ± 0.8 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2005 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 167 |
---|---|
neutron number | 103 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.2 ± 0.3 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2012 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 168 |
---|---|
neutron number | 104 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3.03 ± 0.16 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1985 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 169 |
---|---|
neutron number | 105 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 750 ± 210 ms
|
spin | 7/2 |
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 | 170 |
---|---|
neutron number | 106 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 420 ± 130 ms
|
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 | 171 |
---|---|
neutron number | 107 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2018 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) |
mass number | 172 |
---|---|
neutron number | 108 |
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 | Jean de Marignac |
---|---|
location of discovery | Switzerland |
time of discovery or invention | 1880 |
etymology | Named after the mineral gadolinite. |
pronunciation | GAD-eh-LIN-i-em (Ingarihi) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (Moana nui) | |
natural abundance (human body) | |
natural abundance (meteoroid) | 0.000023 %
|
natural abundance (Te Rā) | 0.0000002 %
|
Abundance in Universe | 0.0000002 %
|
1 | s | 1.2565 |
2 | p | 4.2946 |
2 | s | 16.783 |
3 | d | 13.723 |
3 | p | 19.8508 |
3 | s | 20.2903 |
4 | d | 34.3664 |
4 | f | 38.9864 |
4 | p | 31.3532 |
4 | s | 30.556 |
5 | p | 47.236 |
5 | s | 45.118 |
6 | s | 55.7854 |