Atomic Number | 20 |
---|---|
Atomic Weight | 40.078 |
mass number | 40 |
Group | 2 |
---|---|
Period | 4 |
Block | s |
proton | 20 p+ |
---|---|
neutron | 20 n0 |
electron | 20 e- |
Rai Atomic | |
---|---|
molar volume | |
covalent radius | |
Metallic Radius | |
ionic radius | |
Crystal Radius | |
Rai de van der Waals | |
densitat |
energia | |
---|---|
proton affinity | |
electron affinity | |
ionization energy | |
enthalpy of vaporization | |
enthalpy of fusion | |
standard enthalpy of formation | |
electron | |
electron shell | 2, 8, 8, 2 |
valence electron | 2 ⓘ |
electron configuration | [Ar] 4s2ⓘ 1s2 2s2 2p6 3s2 3p6 4s2 |
oxidation number | 1, 2 |
Electronegativitat | 1
|
Electrophilicity Index | |
fundamental state of matter | |
estat de la matèria | Solid |
gaseous state of matter | |
Boiling Point | |
Melting Point | |
critical pressure | |
critical temperature | |
Ponch triple | |
appearance | |
Color | Silver
|
appearance | |
Indici de refraccion | |
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) | 0.0000000138 m³/Kg
|
magnetic susceptibility (Molar) | 0.0000000005531 m³/mol
|
magnetic susceptibility (Volume) | 0.00002139
|
magnetic ordering | |
Curie temperature | |
Néel temperature | |
estructura | |
Crystal Structure | Face Centered Cubic (FCC) |
lattice constant | |
Lattice Angles | π/2, π/2, π/2 |
mechanical property | |
Duretat | |
bulk modulus | |
shear modulus | |
Young's modulus | |
Poisson's ratio | 0.31
|
speed of sound | |
classification | |
Category | Alkaline earth metals, Alkaline earth metals |
CAS Group | IIA |
IUPAC Group | IIA |
Glawe Number | 16 |
Mendeleev Number | 7 |
Pettifor Number | 16 |
Geochemical Class | major |
Goldschmidt classification | litophile |
Gas Basicity | |
---|---|
polarizability | |
C6 Dispersion Coefficient | |
allotrope | |
Neutron cross section | 0.43
|
Neutron Mass Absorption | 0.00037
|
quantum number | 1S0 |
space group | 225 (Fm_3m) |
Stable Isotopes | 3 |
---|---|
Unstable Isotopes | 26 |
Natural Isotopes | 6 |
mass number | 33 |
---|---|
neutron number | 13 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 5/2 |
nuclear quadrupole moment | |
data de descobèrta | |
parity | + |
decay mode | intensity |
---|---|
p (proton emission) |
mass number | 34 |
---|---|
neutron number | 14 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | |
parity | + |
decay mode | intensity |
---|---|
2p (2-proton emission) |
mass number | 35 |
---|---|
neutron number | 15 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 25.7 ± 0.2 ms
|
Espin | 1/2 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1985 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 95.8% |
2p (2-proton emission) | 4.2% |
mass number | 36 |
---|---|
neutron number | 16 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 100.9 ± 1.3 ms
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1977 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 51.2% |
mass number | 37 |
---|---|
neutron number | 17 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 181 ± 0.9 ms
|
Espin | 3/2 |
nuclear quadrupole moment | |
data de descobèrta | 1964 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
β+ p (β+-delayed proton emission) | 76.8% |
mass number | 38 |
---|---|
neutron number | 18 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 443.7 ± 0.25 ms
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1966 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 39 |
---|---|
neutron number | 19 |
Relative Atomic Mass | |
g-factor | 0.68093333333333 ± 0.00010666666666667
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 860.3 ± 0.8 ms
|
Espin | 3/2 |
nuclear quadrupole moment | 0.038 ± 0.003
|
data de descobèrta | 1943 |
parity | + |
decay mode | intensity |
---|---|
β+ (β+ decay; β+ = ϵ + e+) | 100% |
mass number | 40 |
---|---|
neutron number | 20 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 96.941 ± 0.156
|
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1922 |
parity | + |
decay mode | intensity |
---|---|
2β+ (double β+ decay) |
mass number | 41 |
---|---|
neutron number | 21 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 99.4 ± 1.5 ky
|
Espin | 7/2 |
nuclear quadrupole moment | -0.0665 ± 0.0018
|
data de descobèrta | 1939 |
parity | - |
decay mode | intensity |
---|---|
ϵ (electron capture) | 100% |
mass number | 42 |
---|---|
neutron number | 22 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0.647 ± 0.023
|
Radioactivitat | stable isotope |
Semivida | Not Radioactive ☢️ |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1934 |
parity | + |
mass number | 43 |
---|---|
neutron number | 23 |
Relative Atomic Mass | |
g-factor | -0.37638 ± 0.000017142857142857
|
natural abundance | 0.135 ± 0.01
|
Radioactivitat | stable isotope |
Semivida | Not Radioactive ☢️ |
Espin | 7/2 |
nuclear quadrupole moment | -0.0408 ± 0.0008
|
data de descobèrta | 1934 |
parity | - |
mass number | 44 |
---|---|
neutron number | 24 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 2.086 ± 0.11
|
Radioactivitat | stable isotope |
Semivida | Not Radioactive ☢️ |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1922 |
parity | + |
mass number | 45 |
---|---|
neutron number | 25 |
Relative Atomic Mass | |
g-factor | -0.37897142857143 ± 0.00037142857142857
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 162.61 ± 0.09 d
|
Espin | 7/2 |
nuclear quadrupole moment | 0.038 ± 0.012
|
data de descobèrta | 1940 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 46 |
---|---|
neutron number | 26 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0.004 ± 0.003
|
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1938 |
parity | + |
decay mode | intensity |
---|---|
2β− (double β− decay) |
mass number | 47 |
---|---|
neutron number | 27 |
Relative Atomic Mass | |
g-factor | -0.40182857142857 ± 0.00031428571428571
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 4.536 ± 0.003 d
|
Espin | 7/2 |
nuclear quadrupole moment | 0.084 ± 0.006
|
data de descobèrta | 1951 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 48 |
---|---|
neutron number | 28 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | 0.187 ± 0.021
|
Radioactivitat | ☢️ radioactive element |
Semivida | 56 ± 10 Ey
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1938 |
parity | + |
decay mode | intensity |
---|---|
2β− (double β− decay) | |
β− (β− decay) |
mass number | 49 |
---|---|
neutron number | 29 |
Relative Atomic Mass | |
g-factor | -0.91993333333333 ± 0.00053333333333333
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 8.718 ± 0.006 m
|
Espin | 3/2 |
nuclear quadrupole moment | -0.036 ± 0.003
|
data de descobèrta | 1950 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 50 |
---|---|
neutron number | 30 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 13.45 ± 0.05 s
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1964 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
mass number | 51 |
---|---|
neutron number | 31 |
Relative Atomic Mass | |
g-factor | -0.69973333333333 ± 0.00073333333333333
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 10 ± 0.8 s
|
Espin | 3/2 |
nuclear quadrupole moment | 0.036 ± 0.012
|
data de descobèrta | 1980 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) |
mass number | 52 |
---|---|
neutron number | 32 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 4.6 ± 0.3 s
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1985 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 2% |
mass number | 53 |
---|---|
neutron number | 33 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 461 ± 90 ms
|
Espin | 1/2 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1983 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | 40% |
mass number | 54 |
---|---|
neutron number | 34 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 90 ± 6 ms
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1997 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 55 |
---|---|
neutron number | 35 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 22 ± 2 ms
|
Espin | 5/2 |
nuclear quadrupole moment | |
data de descobèrta | 1997 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 56 |
---|---|
neutron number | 36 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | 11 ± 2 ms
|
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 1997 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | 100% |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 57 |
---|---|
neutron number | 37 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 5/2 |
nuclear quadrupole moment | |
data de descobèrta | 2009 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 58 |
---|---|
neutron number | 38 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 2009 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 59 |
---|---|
neutron number | 39 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 5/2 |
nuclear quadrupole moment | |
data de descobèrta | 2018 |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 60 |
---|---|
neutron number | 40 |
Relative Atomic Mass | |
g-factor | 0
|
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 0 |
nuclear quadrupole moment | 0
|
data de descobèrta | 2018 |
parity | + |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
mass number | 61 |
---|---|
neutron number | 41 |
Relative Atomic Mass | |
g-factor | |
natural abundance | |
Radioactivitat | ☢️ radioactive element |
Semivida | |
Espin | 1/2 |
nuclear quadrupole moment | 0
|
data de descobèrta | |
parity | - |
decay mode | intensity |
---|---|
β− (β− decay) | |
β− n (β−-delayed neutron emission) | |
2n (2-neutron emission) |
descobridor o inventaire | Sir Humphrey Davy |
---|---|
luòc de descobèrta | England |
data de descobèrta | 1808 |
Etimologia | Latin: calx, calcis (lime). |
pronunciation | KAL-si-em (English) |
Abundance | |
---|---|
Abundance in Earth's crust | |
natural abundance (Ocean) | |
natural abundance (còs uman) | 1.4 %
|
natural abundance (meteoroid) | 1.1 %
|
natural abundance (Solelh) | 0.007 %
|
Abundance in Universe | 0.007 %
|
1 | s | 0.527 |
2 | p | 3.9586 |
2 | s | 6.2236 |
3 | p | 11.3417 |
3 | s | 10.3985 |
4 | s | 15.602 |