Atomic Number | 93 |
---|---|
Atomic Weight | 237 |
mass number | 219 |
Group | |
---|---|
Period | 7 |
Block | f |
proton | 93 p+ |
---|---|
neutron | 126 n0 |
elettron | 93 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, 32, 22, 9, 2 |
valence electron | 2 ⓘ |
electron configuration | [Rn] 5f4 6d1 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f4 6d1 7s2 |
oxidation number | 2, 3, 4, 5, 6, 7 |
electronegativity |
1.3
|
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 metallic |
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 | |
magnetic susceptibility (Mass) | |
magnetic susceptibility (Molar) | |
magnetic susceptibility (Volume) | |
magnetic ordering | |
Curie temperature | |
Néel temperature | |
structure | |
Crystal Structure | Simple Orthorhombic (ORC) |
lattice constant | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
hardness | |
bulk modulus | |
shear modulus | |
Young's modulus | |
Poisson's ratio | |
speed of sound | |
classification | |
Category | Actinides, Actinides |
CAS Group | |
IUPAC Group | |
Glawe Number | 37 |
Mendeleev Number | 22 |
Pettifor Number | 44 |
Geochemical Class | |
Goldschmidt classification | synthetic |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 180
|
Neutron Mass Absorption | |
quantum number | 6L11/2 |
space group | 62 (Pnma) |
Stable Isotopes | 0 |
---|---|
Unstable Isotopes | 27 |
Natural Isotopes | 0 |
mass number | 219 |
---|---|
neutron number | 126 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 570 ± 450 us
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2015 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 220 |
---|---|
neutron number | 127 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 29 ± 11 ns
|
spin | 1 |
nuclear quadrupole moment | |
time of discovery or invention | 2019 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 221 |
---|---|
neutron number | 128 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | |
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | |
parity | - |
decay mode | intensity |
---|---|
α (α emission) |
mass number | 222 |
---|---|
neutron number | 129 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 480 ± 190 ns
|
spin | 1 |
nuclear quadrupole moment | |
time of discovery or invention | 2020 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 223 |
---|---|
neutron number | 130 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.5 ± 0.8 us
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2017 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 224 |
---|---|
neutron number | 131 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 48 ± 19 us
|
spin | 2 |
nuclear quadrupole moment | |
time of discovery or invention | 2018 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 225 |
---|---|
neutron number | 132 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 6.5 ± 3.5 ms
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1994 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 226 |
---|---|
neutron number | 133 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 35 ± 10 ms
|
spin | |
nuclear quadrupole moment | |
time of discovery or invention | 1990 |
parity |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 227 |
---|---|
neutron number | 134 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 510 ± 60 ms
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1990 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 228 |
---|---|
neutron number | 135 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 61.4 ± 1.4 s
|
spin | 4 |
nuclear quadrupole moment | |
time of discovery or invention | 1994 |
parity | + |
decay mode | intensity |
---|---|
ϵ (electron capture) | 59% |
α (α emission) | 41% |
β+ SF (β+-delayed fission) | 0.012% |
mass number | 229 |
---|---|
neutron number | 136 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4 ± 0.18 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1968 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 68% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 230 |
---|---|
neutron number | 137 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.6 ± 0.3 m
|
spin | 4 |
nuclear quadrupole moment | |
time of discovery or invention | 1968 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 97% |
α (α emission) | 3% |
mass number | 231 |
---|---|
neutron number | 138 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 48.8 ± 0.2 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1950 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 98% |
α (α emission) | 2% |
mass number | 232 |
---|---|
neutron number | 139 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 14.7 ± 0.3 m
|
spin | 5 |
nuclear quadrupole moment | |
time of discovery or invention | 1950 |
parity | - |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
α (α emission) |
mass number | 233 |
---|---|
neutron number | 140 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 36.2 ± 0.1 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1950 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
α (α emission) | 0.0007% |
mass number | 234 |
---|---|
neutron number | 141 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.4 ± 0.1 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1949 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 235 |
---|---|
neutron number | 142 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 396.1 ± 1.2 d
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1949 |
parity | + |
decay mode | intensity |
---|---|
ϵ (electron capture) | 99.9974% |
α (α emission) | 0.0026% |
mass number | 236 |
---|---|
neutron number | 143 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 153 ± 5 ky
|
spin | 6 |
nuclear quadrupole moment | |
time of discovery or invention | 1949 |
parity | - |
decay mode | intensity |
---|---|
ϵ (electron capture) | 86.3% |
β− (β− decay) | 13.5% |
α (α emission) | 0.16% |
mass number | 237 |
---|---|
neutron number | 144 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.144 ± 0.007 My
|
spin | 5/2 |
nuclear quadrupole moment | 3.886 ± 0.006
|
time of discovery or invention | 1948 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
SF (spontaneous fission) | 2% |
30Mg | 4% |
mass number | 238 |
---|---|
neutron number | 145 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.099 ± 0.002 d
|
spin | 2 |
nuclear quadrupole moment | |
time of discovery or invention | 1949 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 239 |
---|---|
neutron number | 146 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.356 ± 0.003 d
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1940 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
α (α emission) |
mass number | 240 |
---|---|
neutron number | 147 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 61.9 ± 0.2 m
|
spin | 5 |
nuclear quadrupole moment | |
time of discovery or invention | 1953 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 241 |
---|---|
neutron number | 148 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 13.9 ± 0.2 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1959 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
α (α emission) |
mass number | 242 |
---|---|
neutron number | 149 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.2 ± 0.2 m
|
spin | 1 |
nuclear quadrupole moment | |
time of discovery or invention | 1979 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 243 |
---|---|
neutron number | 150 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.85 ± 0.15 m
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1979 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 244 |
---|---|
neutron number | 151 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.29 ± 0.16 m
|
spin | 7 |
nuclear quadrupole moment | |
time of discovery or invention | 1987 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 245 |
---|---|
neutron number | 152 |
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) |
discoverer or inventor | E.M. McMillan, P.H. Abelson |
---|---|
location of discovery | United States |
time of discovery or invention | 1940 |
etimoloġija | Named for the planet Neptune. |
pronunciation | nep-TOO-ni-em (Ingliż) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (ocean) | |
natural abundance (human body) | 0 %
|
natural abundance (meteoroid) | 0 %
|
natural abundance (Xemx) | 0 %
|
Abundance in Universe | 0 %
|