| Atomic Number | 56 |
|---|---|
| Atomic Weight | 137.327 |
| mass number | 138 |
| Group | 2 |
|---|---|
| Period | 6 |
| Block | s |
| proton | 56 p+ |
|---|---|
| Neutron | 82 n0 |
| Elektron | 56 e- |
| Atomic Radius | |
|---|---|
| molar volume | |
| Covalent Radius | |
| Metallic Radius | |
| ionic radius | |
| Crystal Radius | |
| Van der Waals radius | |
| density |
| orka | |
|---|---|
| proton affinity | |
| electron affinity | |
| ionization energy | |
| enthalpy of vaporization | |
| enthalpy of fusion | |
| standard enthalpy of formation | |
| Elektron | |
| electron shell | 2, 8, 18, 18, 8, 2 |
| valence electron | 2 ⓘ |
| electron configuration | [Xe] 6s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 |
| oxidation number | 1, 2 |
| electronegativity |
0.89
|
| Electrophilicity Index | |
| fundamental state of matter | |
| phase of matter | {ERROR}|
| gaseous state of matter | |
| Boiling Point | |
| Melting Point | |
| critical pressure | |
| critical temperature | |
| triple point | |
| appearance | |
| litur | Black
|
| appearance | |
| 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) | 0,0000000113 m³/Kg
|
| magnetic susceptibility (Molar) | 0,000000001552 m³/mol
|
| magnetic susceptibility (Volume) | 0,00003966
|
| magnetic ordering | |
| Curie temperature | |
| Néel temperature | |
| bygnaður | |
| Crystal Structure | {ERROR} |
| 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, 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
|
| quantum number | 1S0 |
| space group | 229 (Im_3m) |
| Stable Isotopes | 5 |
|---|---|
| Unstable Isotopes | 37 |
| Natural Isotopes | 7 |
| mass number | 113 |
|---|---|
| neutron number | 57 |
| 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 |
|---|---|
| p (proton emission) | |
| α (α emission) |
| mass number | 114 |
|---|---|
| neutron number | 58 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 460 ± 125 ms
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1995 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ p (β+-delayed proton emission) | 20% |
| α (α emission) | 0.9% |
| 12C | 0.0034% |
| mass number | 115 |
|---|---|
| neutron number | 59 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 450 ± 50 ms
|
| spin | 5/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1997 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ p (β+-delayed proton emission) | 15% |
| mass number | 116 |
|---|---|
| neutron number | 60 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 1,3 ± 0,2 s
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1997 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ p (β+-delayed proton emission) | 3% |
| mass number | 117 |
|---|---|
| neutron number | 61 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 1,75 ± 0,07 s
|
| spin | 3/2 |
| 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) | 13% |
| β+α (β+-delayed α emission) | 0.024% |
| mass number | 118 |
|---|---|
| neutron number | 62 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 5,2 ± 0,2 s
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1997 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 119 |
|---|---|
| neutron number | 63 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 5,4 ± 0,3 s
|
| spin | 5/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1974 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ p (β+-delayed proton emission) | 25% |
| mass number | 120 |
|---|---|
| neutron number | 64 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 24 ± 2 s
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1974 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 121 |
|---|---|
| neutron number | 65 |
| Relative Atomic Mass | |
| g-factor | 0,264 ± 0,0004
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 29,7 ± 1,5 s
|
| spin | 5/2 |
| nuclear quadrupole moment | 1,89 ± 0,13
|
| time of discovery or invention | 1975 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| β+ p (β+-delayed proton emission) | 0.02% |
| mass number | 122 |
|---|---|
| neutron number | 66 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 1,95 ± 0,15 m
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1974 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 123 |
|---|---|
| neutron number | 67 |
| Relative Atomic Mass | |
| g-factor | −0,272 ± 0,0004
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 2,7 ± 0,4 m
|
| spin | 5/2 |
| nuclear quadrupole moment | 1,57 ± 0,13
|
| time of discovery or invention | 1962 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 124 |
|---|---|
| neutron number | 68 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 11 ± 0,5 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 | 125 |
|---|---|
| neutron number | 69 |
| Relative Atomic Mass | |
| g-factor | 0,354 ± 0,024
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 3,3 ± 0,3 m
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1968 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 126 |
|---|---|
| neutron number | 70 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 100 ± 2 m
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1954 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 127 |
|---|---|
| neutron number | 71 |
| Relative Atomic Mass | |
| g-factor | 0,1668 ± 0,002
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 12,7 ± 0,4 m
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1952 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 128 |
|---|---|
| neutron number | 72 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 2,43 ± 0,05 d
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1950 |
| parity | + |
| decay mode | intensity |
|---|---|
| ϵ (electron capture) | 100% |
| mass number | 129 |
|---|---|
| neutron number | 73 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 2,23 ± 0,11 h
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1950 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 130 |
|---|---|
| neutron number | 74 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | 0,11 ± 0,01
|
| radioactivity | ☢️ radioactive element |
| half-life | |
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1936 |
| parity | + |
| decay mode | intensity |
|---|---|
| 2β+ (double β+ decay) |
| mass number | 131 |
|---|---|
| neutron number | 75 |
| Relative Atomic Mass | |
| g-factor | 1,4166 ± 0,0004
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 11,52 ± 0,01 d
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1947 |
| parity | + |
| decay mode | intensity |
|---|---|
| β+ (β+ decay; β+ = ϵ + e+) | 100% |
| mass number | 132 |
|---|---|
| neutron number | 76 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | 0,1 ± 0,01
|
| radioactivity | ☢️ radioactive element |
| half-life | |
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1936 |
| parity | + |
| decay mode | intensity |
|---|---|
| 2β+ (double β+ decay) |
| mass number | 133 |
|---|---|
| neutron number | 77 |
| Relative Atomic Mass | |
| g-factor | 1,5438 ± 0,0004
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 10,5379 ± 0,0016 y
|
| spin | 1/2 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1941 |
| parity | + |
| decay mode | intensity |
|---|---|
| ϵ (electron capture) | 100% |
| mass number | 134 |
|---|---|
| neutron number | 78 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | 2,42 ± 0,15
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1936 |
| parity | + |
| mass number | 135 |
|---|---|
| neutron number | 79 |
| Relative Atomic Mass | |
| g-factor | 0,55873333333333 ± 0,00013333333333333
|
| natural abundance | 6,59 ± 0,1
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 3/2 |
| nuclear quadrupole moment | 0,153 ± 0,002
|
| time of discovery or invention | 1932 |
| parity | + |
| mass number | 136 |
|---|---|
| neutron number | 80 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | 7,85 ± 0,24
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1932 |
| parity | + |
| mass number | 137 |
|---|---|
| neutron number | 81 |
| Relative Atomic Mass | |
| g-factor | 0,625 ± 0,00013333333333333
|
| natural abundance | 11,23 ± 0,23
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 3/2 |
| nuclear quadrupole moment | 0,236 ± 0,003
|
| time of discovery or invention | 1932 |
| parity | + |
| mass number | 138 |
|---|---|
| neutron number | 82 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | 71,7 ± 0,29
|
| radioactivity | stable isotope |
| half-life | Not Radioactive ☢️ |
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1925 |
| parity | + |
| mass number | 139 |
|---|---|
| neutron number | 83 |
| Relative Atomic Mass | |
| g-factor | −0,278 ± 0,0014285714285714
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 82,93 ± 0,09 m
|
| spin | 7/2 |
| nuclear quadrupole moment | −0,552 ± 0,013
|
| time of discovery or invention | 1937 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 140 |
|---|---|
| neutron number | 84 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 12,7534 ± 0,0021 d
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1939 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 141 |
|---|---|
| neutron number | 85 |
| Relative Atomic Mass | |
| g-factor | −0,22466666666667 ± 0,0033333333333333
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 18,27 ± 0,07 m
|
| spin | 3/2 |
| nuclear quadrupole moment | 0,437 ± 0,01
|
| time of discovery or invention | 1945 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 142 |
|---|---|
| neutron number | 86 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 10,6 ± 0,2 m
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1959 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 143 |
|---|---|
| neutron number | 87 |
| Relative Atomic Mass | |
| g-factor | 0,1772 ± 0,0044
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 14,5 ± 0,3 s
|
| spin | 5/2 |
| nuclear quadrupole moment | −0,85 ± 0,02
|
| time of discovery or invention | 1962 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 144 |
|---|---|
| neutron number | 88 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 11,73 ± 0,08 s
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1967 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 145 |
|---|---|
| neutron number | 89 |
| Relative Atomic Mass | |
| g-factor | −0,114 ± 0,0028
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 4,31 ± 0,16 s
|
| spin | 5/2 |
| nuclear quadrupole moment | 1,18 ± 0,02
|
| time of discovery or invention | 1974 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 146 |
|---|---|
| neutron number | 90 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 2,15 ± 0,04 s
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1970 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| mass number | 147 |
|---|---|
| neutron number | 91 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 893 ± 1 ms
|
| spin | 5/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1978 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) | 0.07% |
| mass number | 148 |
|---|---|
| neutron number | 92 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 620 ± 5 ms
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1979 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) | 0.4% |
| mass number | 149 |
|---|---|
| neutron number | 93 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 349 ± 4 ms
|
| spin | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1993 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) | 3.9% |
| mass number | 150 |
|---|---|
| neutron number | 94 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 258 ± 5 ms
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 1994 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) | 1% |
| mass number | 151 |
|---|---|
| neutron number | 95 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 167 ± 5 ms
|
| spin | 3/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 1994 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) |
| mass number | 152 |
|---|---|
| neutron number | 96 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 139 ± 8 ms
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 2010 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) |
| mass number | 153 |
|---|---|
| neutron number | 97 |
| Relative Atomic Mass | |
| g-factor | |
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 113 ± 39 ms
|
| spin | 5/2 |
| nuclear quadrupole moment | |
| time of discovery or invention | 2016 |
| parity | - |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| β− n (β−-delayed neutron emission) | |
| 2n (2-neutron emission) |
| mass number | 154 |
|---|---|
| neutron number | 98 |
| Relative Atomic Mass | |
| g-factor | 0
|
| natural abundance | |
| radioactivity | ☢️ radioactive element |
| half-life | 53 ± 48 ms
|
| spin | 0 |
| nuclear quadrupole moment | 0
|
| time of discovery or invention | 2017 |
| parity | + |
| decay mode | intensity |
|---|---|
| β− (β− decay) | 100% |
| discoverer or inventor | Sir Humphrey Davy |
|---|---|
| location of discovery | England |
| time of discovery or invention | 1808 |
| etymology | Greek: barys (heavy or dense). |
| pronunciation | BAR-i-em (enskt) |
| Abundance | |
|---|---|
| Abundance in Earth's crust | |
| natural abundance (hav) | |
| natural abundance (human body) | 0,00003 %
|
| natural abundance (meteoroid) | 0,00027 %
|
| natural abundance (Sólin) | 0,000001 %
|
| Abundance in Universe | 0,000001 %
|
| 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 |