Atomic Number | 56 |
---|---|
Atomic Weight | 137.327 |
Nombor jisim | 138 |
Group | 2 |
---|---|
Period | 6 |
Block | s |
proton | 56 p+ |
---|---|
neutron | 82 n0 |
Elektron | 56 e- |
Jejari Atom | 215 pm
|
---|---|
molar volume | 39 cm³/mol
|
Jejari kovalen | 196 pm
|
Metallic Radius | 198 pm
|
ionic radius | 135 pm
|
Crystal Radius | 149 pm
|
Jejari van der Waals | 268 pm
|
ketumpatan | 3.62 g/cm³
|
tenaga | |
---|---|
proton affinity | |
Pertalian elektron | 0.14462 eV/particle
|
ionization energy | 5.211664 eV/particle
|
Entalpi pengewapan | 142 kJ/mol
|
entalpi pelakuran | 7.66 kJ/mol
|
standard enthalpy of formation | 179.1 kJ/mol
|
Elektron | |
Petala elektron | 2, 8, 18, 18, 8, 2 |
Elektron valens | 2 ⓘ |
tatarajah elektron | [Xe] 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 |
Keadaan pengoksidaan | 1, 2 |
Keelektronegatifan | 0.89
|
Electrophilicity Index | 0.7077543210759566 eV/particle
|
keadaan jirim asas | |
fasa jirim | Solid |
gaseous state of matter | |
Boiling Point | 2,118.15 K
|
Melting Point | 1,000.15 K
|
critical pressure | |
critical temperature | |
triple point | |
rupa | |
warna | Silver
|
rupa | |
indeks biasan | |
sifat bahan | |
Thermal Conductivity | |
Pengembangan terma | 0.0000206 1/K
|
molar heat capacity | 28.07 J/(mol K)
|
Specific Heat Capacity | 0.204 J/(g⋅K)
|
heat capacity ratio | |
electrical properties | |
type | Conductor |
Kekonduksian elektrik | 2.9 MS/m
|
Kerintangan dan kekonduksian elektrik | 0.00000035 m Ω
|
Kesuperkonduksian | |
kemagnetan | |
type | paramagnetic |
magnetic susceptibility (Mass) | 0.0000000113 m³/Kg
|
magnetic susceptibility (Molar) | 0.000000001552 m³/mol
|
magnetic susceptibility (Volume) | 0.00003966
|
magnetic ordering | |
Suhu Curie | |
Néel temperature | |
struktur | |
Crystal Structure | Body Centered Cubic (BCC) |
lattice constant | 5.02 Å
|
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
hardness |
1.25 MPa
|
Modulus pukal | 9.6 GPa
|
shear modulus | 4.9 GPa
|
Young's modulus | 13 GPa
|
Nisbah Poisson | |
Kelajuan bunyi | 1,620 m/s
|
pengelasan | |
Category | Alkaline earth metals, Alkaline earth metals |
CAS Group | IIA |
IUPAC Group | IIA |
Glawe Number | 14 |
Mendeleev Number | 9 |
Pettifor Number | 14 |
Geochemical Class | alkaline earth metal |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 1.3
|
Neutron Mass Absorption | 0.00027
|
Nombor kuantum | 1S0 |
space group | 229 (Im_3m) |
Stable Isotopes | 5 |
---|---|
Unstable Isotopes | 37 |
Natural Isotopes | 7 |
Nombor jisim | 113 |
---|---|
nombor neutron | 57 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | |
Spin | 5/2 |
nuclear quadrupole moment | |
tarikh penemuan | |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
p (proton emission) | |
α (α emission) |
Nombor jisim | 114 |
---|---|
nombor neutron | 58 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 460 ± 125 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1995 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 20% |
α (α emission) | 0.9% |
12C | 0.0034% |
Nombor jisim | 115 |
---|---|
nombor neutron | 59 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 450 ± 50 ms
|
Spin | 5/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1997 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 15% |
Nombor jisim | 116 |
---|---|
nombor neutron | 60 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 1.3 ± 0.2 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1997 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 3% |
Nombor jisim | 117 |
---|---|
nombor neutron | 61 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 1.75 ± 0.07 s
|
Spin | 3/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1977 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 13% |
β+α (β+-delayed α emission) | 0.024% |
Nombor jisim | 118 |
---|---|
nombor neutron | 62 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 5.2 ± 0.2 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1997 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 119 |
---|---|
nombor neutron | 63 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 5.4 ± 0.3 s
|
Spin | 5/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1974 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 25% |
Nombor jisim | 120 |
---|---|
nombor neutron | 64 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 24 ± 2 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1974 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 121 |
---|---|
nombor neutron | 65 |
jisim atom relatif | |
g-factor | 0.264 ± 0.0004
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 29.7 ± 1.5 s
|
Spin | 5/2 |
nuclear quadrupole moment | 1.89 ± 0.13
|
tarikh penemuan | 1975 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 0.02% |
Nombor jisim | 122 |
---|---|
nombor neutron | 66 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 1.95 ± 0.15 m
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1974 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 123 |
---|---|
nombor neutron | 67 |
jisim atom relatif | |
g-factor | -0.272 ± 0.0004
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 2.7 ± 0.4 m
|
Spin | 5/2 |
nuclear quadrupole moment | 1.57 ± 0.13
|
tarikh penemuan | 1962 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 124 |
---|---|
nombor neutron | 68 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 11 ± 0.5 m
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1967 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 125 |
---|---|
nombor neutron | 69 |
jisim atom relatif | |
g-factor | 0.354 ± 0.024
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 3.3 ± 0.3 m
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1968 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 126 |
---|---|
nombor neutron | 70 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 100 ± 2 m
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1954 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 127 |
---|---|
nombor neutron | 71 |
jisim atom relatif | |
g-factor | 0.1668 ± 0.002
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 12.7 ± 0.4 m
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1952 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 128 |
---|---|
nombor neutron | 72 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 2.43 ± 0.05 d
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1950 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
ϵ (electron capture) | 100% |
Nombor jisim | 129 |
---|---|
nombor neutron | 73 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 2.23 ± 0.11 h
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1950 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 130 |
---|---|
nombor neutron | 74 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | 0.11 ± 0.01
|
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | |
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1936 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
2β+ (double β+ decay) |
Nombor jisim | 131 |
---|---|
nombor neutron | 75 |
jisim atom relatif | |
g-factor | 1.4166 ± 0.0004
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 11.52 ± 0.01 d
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1947 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
Nombor jisim | 132 |
---|---|
nombor neutron | 76 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | 0.1 ± 0.01
|
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | |
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1936 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
2β+ (double β+ decay) |
Nombor jisim | 133 |
---|---|
nombor neutron | 77 |
jisim atom relatif | |
g-factor | 1.5438 ± 0.0004
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 10.5379 ± 0.0016 y
|
Spin | 1/2 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1941 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
ϵ (electron capture) | 100% |
Nombor jisim | 134 |
---|---|
nombor neutron | 78 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | 2.42 ± 0.15
|
Reputan radioaktif | Isotop stabil |
setengah hayat | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1936 |
parity | + |
Nombor jisim | 135 |
---|---|
nombor neutron | 79 |
jisim atom relatif | |
g-factor | 0.55873333333333 ± 0.00013333333333333
|
natural abundance | 6.59 ± 0.1
|
Reputan radioaktif | Isotop stabil |
setengah hayat | Not Radioactive ☢️ |
Spin | 3/2 |
nuclear quadrupole moment | 0.153 ± 0.002
|
tarikh penemuan | 1932 |
parity | + |
Nombor jisim | 136 |
---|---|
nombor neutron | 80 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | 7.85 ± 0.24
|
Reputan radioaktif | Isotop stabil |
setengah hayat | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1932 |
parity | + |
Nombor jisim | 137 |
---|---|
nombor neutron | 81 |
jisim atom relatif | |
g-factor | 0.625 ± 0.00013333333333333
|
natural abundance | 11.23 ± 0.23
|
Reputan radioaktif | Isotop stabil |
setengah hayat | Not Radioactive ☢️ |
Spin | 3/2 |
nuclear quadrupole moment | 0.236 ± 0.003
|
tarikh penemuan | 1932 |
parity | + |
Nombor jisim | 138 |
---|---|
nombor neutron | 82 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | 71.7 ± 0.29
|
Reputan radioaktif | Isotop stabil |
setengah hayat | Not Radioactive ☢️ |
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1925 |
parity | + |
Nombor jisim | 139 |
---|---|
nombor neutron | 83 |
jisim atom relatif | |
g-factor | -0.278 ± 0.0014285714285714
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 82.93 ± 0.09 m
|
Spin | 7/2 |
nuclear quadrupole moment | -0.552 ± 0.013
|
tarikh penemuan | 1937 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 140 |
---|---|
nombor neutron | 84 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 12.7534 ± 0.0021 d
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1939 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 141 |
---|---|
nombor neutron | 85 |
jisim atom relatif | |
g-factor | -0.22466666666667 ± 0.0033333333333333
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 18.27 ± 0.07 m
|
Spin | 3/2 |
nuclear quadrupole moment | 0.437 ± 0.01
|
tarikh penemuan | 1945 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 142 |
---|---|
nombor neutron | 86 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 10.6 ± 0.2 m
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1959 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 143 |
---|---|
nombor neutron | 87 |
jisim atom relatif | |
g-factor | 0.1772 ± 0.0044
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 14.5 ± 0.3 s
|
Spin | 5/2 |
nuclear quadrupole moment | -0.85 ± 0.02
|
tarikh penemuan | 1962 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 144 |
---|---|
nombor neutron | 88 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 11.73 ± 0.08 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1967 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 145 |
---|---|
nombor neutron | 89 |
jisim atom relatif | |
g-factor | -0.114 ± 0.0028
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 4.31 ± 0.16 s
|
Spin | 5/2 |
nuclear quadrupole moment | 1.18 ± 0.02
|
tarikh penemuan | 1974 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 146 |
---|---|
nombor neutron | 90 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 2.15 ± 0.04 s
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1970 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
Nombor jisim | 147 |
---|---|
nombor neutron | 91 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 893 ± 1 ms
|
Spin | 5/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1978 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.07% |
Nombor jisim | 148 |
---|---|
nombor neutron | 92 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 620 ± 5 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1979 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 0.4% |
Nombor jisim | 149 |
---|---|
nombor neutron | 93 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 349 ± 4 ms
|
Spin | 3/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1993 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 3.9% |
Nombor jisim | 150 |
---|---|
nombor neutron | 94 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 258 ± 5 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 1994 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 1% |
Nombor jisim | 151 |
---|---|
nombor neutron | 95 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 167 ± 5 ms
|
Spin | 3/2 |
nuclear quadrupole moment | |
tarikh penemuan | 1994 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
Nombor jisim | 152 |
---|---|
nombor neutron | 96 |
jisim atom relatif | |
g-factor | 0
|
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 139 ± 8 ms
|
Spin | 0 |
nuclear quadrupole moment | 0
|
tarikh penemuan | 2010 |
parity | + |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
Nombor jisim | 153 |
---|---|
nombor neutron | 97 |
jisim atom relatif | |
g-factor | |
natural abundance | |
Reputan radioaktif | ☢️ radioactive element |
setengah hayat | 113 ± 39 ms
|
Spin | 5/2 |
nuclear quadrupole moment | |
tarikh penemuan | 2016 |
parity | - |
decay mode | Keamatan (fizik) |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
penemu atau pereka | Sir Humphrey Davy |
---|---|
tempat penemuan | England |
tarikh penemuan | 1808 |
Etimologi | Greek: barys (heavy or dense). |
sebutan | BAR-i-em (Inggeris) |
1 | s | 1.1139 |
2 | p | 4.1904 |
2 | s | 14.7532 |
3 | d | 13.9757 |
3 | p | 18.6836 |
3 | s | 18.8444 |
4 | d | 32.216 |
4 | p | 29.1968 |
4 | s | 28.08 |
5 | p | 41.1995 |
5 | s | 39.3805 |
6 | s | 48.425 |