Atomic Number | 88 |
---|---|
Atomic Weight | 226 |
mass number | 201 |
Group | 2 |
---|---|
Period | 7 |
Block | s |
proton | 88 p+ |
---|---|
neutron | 113 n0 |
electron | 88 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, 32, 18, 8, 2 |
valence electron | 2 ⓘ |
electron configuration | [Rn] 7s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 |
oxidation number | 2 |
electronegativity |
0.9
|
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 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 | Body Centered Cubic () |
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 | Alkaline earth metals, Alkaline earth metals |
CAS Group | IIA |
IUPAC Group | IIA |
Glawe Number | 13 |
Mendeleev Number | 10 |
Pettifor Number | 13 |
Geochemical Class | U/Th decay series |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 13
|
Neutron Mass Absorption | |
quantum number | 1S0 |
space group | 229 (Im_3m) |
Stable Isotopes | 0 |
---|---|
Unstable Isotopes | 35 |
Natural Isotopes | 0 |
mass number | 201 |
---|---|
neutron number | 113 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 20 ± 30 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 2005 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 202 |
---|---|
neutron number | 114 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.1 ± 1.1 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 2005 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 203 |
---|---|
neutron number | 115 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 36 ± 13 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1996 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 204 |
---|---|
neutron number | 116 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 60 ± 9 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1995 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 205 |
---|---|
neutron number | 117 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 220 ± 50 ms
|
spin | 3/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1987 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 206 |
---|---|
neutron number | 118 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 240 ± 20 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 207 |
---|---|
neutron number | 119 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.38 ± 0.18 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1967 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 86% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 208 |
---|---|
neutron number | 120 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.11 ± 0.045 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 87% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 209 |
---|---|
neutron number | 121 |
Relative Atomic Mass | |
g-factor | 0.3444 ± 0.0052
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4.71 ± 0.08 s
|
spin | 5/2 |
nuclear quadrupole moment | 0.39 ± 0.04
|
time of discovery or invention | 1967 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 210 |
---|---|
neutron number | 122 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4 ± 0.1 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 211 |
---|---|
neutron number | 123 |
Relative Atomic Mass | |
g-factor | 0.3496 ± 0.0016
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 12.6 ± 1.2 s
|
spin | 5/2 |
nuclear quadrupole moment | 0.46 ± 0.04
|
time of discovery or invention | 1967 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 100% |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 212 |
---|---|
neutron number | 124 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 13 ± 0.2 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | |
β+ (β+ decay; β+ = ϵ + e+) |
mass number | 213 |
---|---|
neutron number | 125 |
Relative Atomic Mass | |
g-factor | 1.22 ± 0.004
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.73 ± 0.05 m
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1955 |
parity | - |
decay mode | intensity |
---|---|
α (α emission) | 87% |
β+ (β+ decay; β+ = ϵ + e+) | 13% |
mass number | 214 |
---|---|
neutron number | 126 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 2.437 ± 0.016 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 99.941% |
β+ (β+ decay; β+ = ϵ + e+) | 0.059% |
mass number | 215 |
---|---|
neutron number | 127 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.669 ± 0.009 ms
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1967 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 216 |
---|---|
neutron number | 128 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 172 ± 7 ns
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1972 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
ϵ (electron capture) | 1% |
mass number | 217 |
---|---|
neutron number | 129 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.95 ± 0.12 us
|
spin | 9/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1970 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 218 |
---|---|
neutron number | 130 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 25.91 ± 0.14 us
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1970 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 219 |
---|---|
neutron number | 131 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 9 ± 2 ms
|
spin | 7/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1952 |
parity |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 220 |
---|---|
neutron number | 132 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 18.1 ± 1.2 ms
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1949 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
mass number | 221 |
---|---|
neutron number | 133 |
Relative Atomic Mass | |
g-factor | -0.0716 ± 0.00068
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 25 ± 4 s
|
spin | 5/2 |
nuclear quadrupole moment | 1.92 ± 0.06
|
time of discovery or invention | 1949 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
14C | 1.2% |
mass number | 222 |
---|---|
neutron number | 134 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 33.6 ± 0.4 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1948 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
14C | 3% |
mass number | 223 |
---|---|
neutron number | 135 |
Relative Atomic Mass | |
g-factor | 0.17946666666667 ± 0.00053333333333333
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 11.4352 ± 0.001 d
|
spin | 3/2 |
nuclear quadrupole moment | 1.22 ± 0.03
|
time of discovery or invention | 1905 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
14C | 8.9% |
mass number | 224 |
---|---|
neutron number | 136 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 3.6316 ± 0.0014 d
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1902 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
14C | 4% |
mass number | 225 |
---|---|
neutron number | 137 |
Relative Atomic Mass | |
g-factor | -1.46 ± 0.004
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 14.82 ± 0.19 d
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1947 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 226 |
---|---|
neutron number | 138 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 1.6 ± 0.007 ky
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1898 |
parity | + |
decay mode | intensity |
---|---|
α (α emission) | 100% |
14C | 2.6% |
2β− (double β− decay) |
mass number | 227 |
---|---|
neutron number | 139 |
Relative Atomic Mass | |
g-factor | -0.26733333333333 ± 0.00073333333333333
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 42.2 ± 0.5 m
|
spin | 3/2 |
nuclear quadrupole moment | 1.53 ± 0.06
|
time of discovery or invention | 1953 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 228 |
---|---|
neutron number | 140 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 5.75 ± 0.03 y
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1907 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 229 |
---|---|
neutron number | 141 |
Relative Atomic Mass | |
g-factor | 0.19968 ± 0.00056
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4 ± 0.2 m
|
spin | 5/2 |
nuclear quadrupole moment | 2.99 ± 0.12
|
time of discovery or invention | 1975 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 230 |
---|---|
neutron number | 142 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 93 ± 2 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1978 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 231 |
---|---|
neutron number | 143 |
Relative Atomic Mass | |
g-factor | -0.14216 ± 0.00044
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 104 ± 1 s
|
spin | 5/2 |
nuclear quadrupole moment | |
time of discovery or invention | 1983 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 232 |
---|---|
neutron number | 144 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 4 ± 0.3 m
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1983 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 233 |
---|---|
neutron number | 145 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 30 ± 5 s
|
spin | 1/2 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1990 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 234 |
---|---|
neutron number | 146 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
radioactivity | ☢️ radioactive element |
half-life | 30 ± 10 s
|
spin | 0 |
nuclear quadrupole moment | 0
|
time of discovery or invention | 1990 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− SF (β−-delayed fission) |
mass number | 235 |
---|---|
neutron number | 147 |
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 | Pierre and Marie Curie |
---|---|
location of discovery | France |
time of discovery or invention | 1898 |
etymology | Latin: radius (ray). |
pronunciation | RAY-di-em (Ingarihi) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (Moana nui) | |
natural abundance (human body) | 0.0000000000001 %
|
natural abundance (meteoroid) | |
natural abundance (Te Rā) | |
Abundance in Universe | 0 %
|