Calzio

Calzio (Ca)

chemical element with symbol Ca and atomic number 20
Atomic Number20
Atomic Weight40.078
Numero masico40
Group2
Period4
Blocks
Protón20 p+
Neutrón20 n0
Electrón20 e-
Animated Modelo atomico de Bohr of Ca (Calzio)

Physical Property

Radio Atomico
molar volume
Radio covalent
Metallic Radius
Radio ionico
Crystal Radius
Radio de van der Waals
density
Atomic Radii Of The Elements: Calzio0102030405060708090100110120130140150160170180190200210220230240pmRadio AtomicoRadio CovalentMetallic RadiusRadio de van der Waals

Chemical Property

enerchía
proton affinity
Afinidat electronica
ionization energy
ionization energy of Ca (Calzio)
Entalpía de vaporización
entalpía de fusión
standard enthalpy of formation
Electrón
electron shell2, 8, 8, 2
Modelo atomico de Bohr: Ca (Calzio)
valence electron2
Lewis structure: Ca (Calzio)
electron configuration[Ar] 4s2
1s2 2s2 2p6 3s2 3p6 4s2
Enhanced Modelo atomico de Bohr of Ca (Calzio)
Orbital Diagram of Ca (Calzio)
Numero d'oxidación1, 2
Electronegatividat
1
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
Punto triple
appearance
Color
Silver
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
electrical resistivity
superconductivity
magnetism
typeparamagnetic
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
structure
Crystal StructureFace Centered Cubic (FCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
0.31
speed of sound
classification
CategoryAlkaline earth metals, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number16
Mendeleev Number7
Pettifor Number16
Geochemical Classmajor
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
0.43
Neutron Mass Absorption
0.00037
quantum number1S0
space group225 (Fm_3m)

Isotopes of Calcium

Stable Isotopes3
Unstable Isotopes26
Natural Isotopes6
Isotopic Composition4096.94%4096.94%442.09%442.09%420.65%420.65%430.13%430.13%460.00%460.00%480.19%480.19%

33Ca

Numero masico33
neutron number13
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin5/2
nuclear quadrupole moment
time of discovery or invention
parity+

decay modeintensity
p (proton emission)

34Ca

Numero masico34
neutron number14
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin0
nuclear quadrupole moment
0
time of discovery or invention
parity+

decay modeintensity
2p (2-proton emission)

35Ca

Numero masico35
neutron number15
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
25.7 ± 0.2 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1985
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)95.8%
2p (2-proton emission)4.2%

36Ca

Numero masico36
neutron number16
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
100.9 ± 1.3 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)51.2%

37Ca

Numero masico37
neutron number17
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
181 ± 0.9 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention1964
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)76.8%

38Ca

Numero masico38
neutron number18
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
443.7 ± 0.25 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

39Ca

Numero masico39
neutron number19
Relative Atomic Mass
g-factor
0.68093333333333 ± 0.00010666666666667
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
860.3 ± 0.8 ms
spin3/2
nuclear quadrupole moment
0.038 ± 0.003
time of discovery or invention1943
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

40Ca

Numero masico40
neutron number20
Relative Atomic Mass
g-factor
0
natural abundance
96.941 ± 0.156
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

decay modeintensity
+ (double β+ decay)

41Ca

Numero masico41
neutron number21
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
99.4 ± 1.5 ky
spin7/2
nuclear quadrupole moment
-0.0665 ± 0.0018
time of discovery or invention1939
parity-

decay modeintensity
ϵ (electron capture)100%

42Ca

Numero masico42
neutron number22
Relative Atomic Mass
g-factor
0
natural abundance
0.647 ± 0.023
Radioactividatstable isotope
Periodo de semidesintegraciónNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1934
parity+

43Ca

Numero masico43
neutron number23
Relative Atomic Mass
g-factor
-0.37638 ± 0.000017142857142857
natural abundance
0.135 ± 0.01
Radioactividatstable isotope
Periodo de semidesintegraciónNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
-0.0408 ± 0.0008
time of discovery or invention1934
parity-

44Ca

Numero masico44
neutron number24
Relative Atomic Mass
g-factor
0
natural abundance
2.086 ± 0.11
Radioactividatstable isotope
Periodo de semidesintegraciónNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1922
parity+

45Ca

Numero masico45
neutron number25
Relative Atomic Mass
g-factor
-0.37897142857143 ± 0.00037142857142857
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
162.61 ± 0.09 d
spin7/2
nuclear quadrupole moment
0.038 ± 0.012
time of discovery or invention1940
parity-

decay modeintensity
β (β decay)100%

46Ca

Numero masico46
neutron number26
Relative Atomic Mass
g-factor
0
natural abundance
0.004 ± 0.003
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin0
nuclear quadrupole moment
0
time of discovery or invention1938
parity+

decay modeintensity
(double β decay)

47Ca

Numero masico47
neutron number27
Relative Atomic Mass
g-factor
-0.40182857142857 ± 0.00031428571428571
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
4.536 ± 0.003 d
spin7/2
nuclear quadrupole moment
0.084 ± 0.006
time of discovery or invention1951
parity-

decay modeintensity
β (β decay)100%

48Ca

Numero masico48
neutron number28
Relative Atomic Mass
g-factor
0
natural abundance
0.187 ± 0.021
Radioactividat☢️ radioactive element
Periodo de semidesintegración
56 ± 10 Ey
spin0
nuclear quadrupole moment
0
time of discovery or invention1938
parity+

decay modeintensity
(double β decay)
β (β decay)

49Ca

Numero masico49
neutron number29
Relative Atomic Mass
g-factor
-0.91993333333333 ± 0.00053333333333333
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
8.718 ± 0.006 m
spin3/2
nuclear quadrupole moment
-0.036 ± 0.003
time of discovery or invention1950
parity-

decay modeintensity
β (β decay)100%

50Ca

Numero masico50
neutron number30
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
13.45 ± 0.05 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1964
parity+

decay modeintensity
β (β decay)100%

51Ca

Numero masico51
neutron number31
Relative Atomic Mass
g-factor
-0.69973333333333 ± 0.00073333333333333
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
10 ± 0.8 s
spin3/2
nuclear quadrupole moment
0.036 ± 0.012
time of discovery or invention1980
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

52Ca

Numero masico52
neutron number32
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
4.6 ± 0.3 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1985
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2%

53Ca

Numero masico53
neutron number33
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
461 ± 90 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1983
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)40%

54Ca

Numero masico54
neutron number34
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
90 ± 6 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

55Ca

Numero masico55
neutron number35
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
22 ± 2 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1997
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

56Ca

Numero masico56
neutron number36
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
11 ± 2 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1997
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

57Ca

Numero masico57
neutron number37
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin5/2
nuclear quadrupole moment
time of discovery or invention2009
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

58Ca

Numero masico58
neutron number38
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin0
nuclear quadrupole moment
0
time of discovery or invention2009
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

59Ca

Numero masico59
neutron number39
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin5/2
nuclear quadrupole moment
time of discovery or invention2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

60Ca

Numero masico60
neutron number40
Relative Atomic Mass
g-factor
0
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin0
nuclear quadrupole moment
0
time of discovery or invention2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

61Ca

Numero masico61
neutron number41
Relative Atomic Mass
g-factor
natural abundance
Radioactividat☢️ radioactive element
Periodo de semidesintegración
spin1/2
nuclear quadrupole moment
0
time of discovery or invention
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Calcium 1

historia

discoverer or inventorSir Humphrey Davy
location of discoveryEngland
time of discovery or invention1808
EtimolochíaLatin: calx, calcis (lime).
pronunciationKAL-si-em (English)

source

Abundance
Abundance in Earth's crust
natural abundance (ocián)
natural abundance (human body)
1.4 %
natural abundance (meteoroid)
1.1 %
natural abundance (Sol)
0.007 %
Abundance in Universe
0.007 %

Nuclear Screening Constants

1s0.527
2p3.9586
2s6.2236
3p11.3417
3s10.3985
4s15.602