Stronsiyûm

Stronsiyûm (Sr)

chemical element with symbol Sr and atomic number 38
Atomic Number38
Atomic Weight87.62
Hejmara baristeyî88
Group2
Period5
Blocks
Proton38 p+
Notron50 n0
Kareva38 e-
Animated Bohr model of Sr (Stronsiyûm)

Physical Property

Atomic Radius
200 pm
molar volume
Covalent Radius
185 pm
Metallic Radius
191 pm
ionic radius
118 pm
Crystal Radius
132 pm
Van der Waals radius
249 pm
density
2,64 g/cm³
Atomic Radii Of The Elements: Stronsiyûm0102030405060708090100110120130140150160170180190200210220230240250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
5,6948672 eV/particle
ionization energy of Sr (Stronsiyûm)
enthalpy of vaporization
144 kJ/mol
enthalpy of fusion
9,2 kJ/mol
standard enthalpy of formation
164 kJ/mol
Kareva
electron shell2, 8, 18, 8, 2
Bohr model: Sr (Stronsiyûm)
valence electron2
Lewis structure: Sr (Stronsiyûm)
electron configuration[Kr] 5s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
Enhanced Bohr model of Sr (Stronsiyûm)
Orbital Diagram of Sr (Stronsiyûm)
oxidation number1, 2
electronegativity
0.95
Electrophilicity Index
0,730062406922635 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
1.650,15 K
Melting Point
1.050,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000225 1/K
molar heat capacity
26,79 J/(mol K)
Specific Heat Capacity
0,306 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
7,7 MS/m
electrical resistivity
0,00000013 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,00000000132 m³/Kg
magnetic susceptibility (Molar)
0,000000000116 m³/mol
magnetic susceptibility (Volume)
0,00000347
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureFace Centered Cubic (FCC)
lattice constant
6,08 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
1,5 MPa
bulk modulus
shear modulus
6,1 GPa
Young's modulus
Poisson's ratio
0,28
Leza dengê
classification
CategoryAlkaline earth metals, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number15
Mendeleev Number8
Pettifor Number15
Geochemical Classalkaline earth metal
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
197,2 ± 0,2 a₀
C6 Dispersion Coefficient
3.175 a₀
allotrope
Neutron cross section
1,2
Neutron Mass Absorption
0,0005
quantum number1S0
space group225 (Fm_3m)

Isotopes of Strontium

Stable Isotopes3
Unstable Isotopes32
Natural Isotopes4
Isotopic Composition8882.58%8882.58%869.86%869.86%877.00%877.00%840.56%840.56%

73Sr

Hejmara baristeyî73
neutron number35
Giraniya atomê
72,9657 ± 0,00043 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
25,3 ± 1,4 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1993
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)63%

74Sr

Hejmara baristeyî74
neutron number36
Giraniya atomê
73,95617 ± 0,000107 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
27,6 ± 2,6 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1995
parity+

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

75Sr

Hejmara baristeyî75
neutron number37
Giraniya atomê
74,949952767 ± 0,000236183 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
85,2 ± 2,3 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1991
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)5.2%

76Sr

Hejmara baristeyî76
neutron number38
Giraniya atomê
75,94176276 ± 0,000037 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
7,89 ± 0,07 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1990
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)3.4%

77Sr

Hejmara baristeyî77
neutron number39
Giraniya atomê
76,937945454 ± 0,0000085 Da
g-factor
-0,1392 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
9 ± 0,2 s
spin5/2
nuclear quadrupole moment
1,27 ± 0,05
dema îcadkirinê yan keşfê1976
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.08%

78Sr

Hejmara baristeyî78
neutron number40
Giraniya atomê
77,932179979 ± 0,000008 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
156,1 ± 2,7 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1982
parity+

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

79Sr

Hejmara baristeyî79
neutron number41
Giraniya atomê
78,929704692 ± 0,000007967 Da
g-factor
-0,316 ± 0,0026666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
2,25 ± 0,1 m
spin3/2
nuclear quadrupole moment
0,661 ± 0,006
dema îcadkirinê yan keşfê1972
parity-

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

80Sr

Hejmara baristeyî80
neutron number42
Giraniya atomê
79,924517538 ± 0,000003718 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
106,3 ± 1,5 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1961
parity+

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

81Sr

Hejmara baristeyî81
neutron number43
Giraniya atomê
80,923211393 ± 0,000003358 Da
g-factor
1,086 ± 0,008
natural abundance
radioactivity☢️ radioactive element
half-life
22,3 ± 0,4 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1952
parity-

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

82Sr

Hejmara baristeyî82
neutron number44
Giraniya atomê
81,918399845 ± 0,000006432 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
25,35 ± 0,03 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1952
parity+

decay modeintensity
ϵ (electron capture)100%

83Sr

Hejmara baristeyî83
neutron number45
Giraniya atomê
82,917554372 ± 0,000007336 Da
g-factor
-0,237 ± 0,0002
natural abundance
radioactivity☢️ radioactive element
half-life
32,41 ± 0,03 h
spin7/2
nuclear quadrupole moment
0,708 ± 0,011
dema îcadkirinê yan keşfê1952
parity+

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

84Sr

Hejmara baristeyî84
neutron number46
Giraniya atomê
83,913419118 ± 0,000001334 Da
g-factor
0
natural abundance
0,56 ± 0,02
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1936
parity+

decay modeintensity
+ (double β+ decay)

85Sr

Hejmara baristeyî85
neutron number47
Giraniya atomê
84,912932041 ± 0,00000302 Da
g-factor
-0,22224444444444 ± 0,00015555555555556
natural abundance
radioactivity☢️ radioactive element
half-life
64,846 ± 0,006 d
spin9/2
nuclear quadrupole moment
0,263 ± 0,014
dema îcadkirinê yan keşfê1940
parity+

decay modeintensity
ϵ (electron capture)100%

86Sr

Hejmara baristeyî86
neutron number48
Giraniya atomê
85,90926072473 ± 0,00000000563 Da
g-factor
0
natural abundance
9,86 ± 0,2
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1931
parity+

87Sr

Hejmara baristeyî87
neutron number49
Giraniya atomê
86,90887749454 ± 0,0000000055 Da
g-factor
-0,24292444444444 ± 0,000024444444444444
natural abundance
7 ± 0,2
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin9/2
nuclear quadrupole moment
0,305 ± 0,002
dema îcadkirinê yan keşfê1931
parity+

88Sr

Hejmara baristeyî88
neutron number50
Giraniya atomê
87,905612253 ± 0,000000006 Da
g-factor
0
natural abundance
82,58 ± 0,35
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1923
parity+

89Sr

Hejmara baristeyî89
neutron number51
Giraniya atomê
88,907450808 ± 0,000000098 Da
g-factor
-0,4592 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
50,563 ± 0,025 d
spin5/2
nuclear quadrupole moment
-0,253 ± 0,008
dema îcadkirinê yan keşfê1937
parity+

decay modeintensity
β (β decay)100%

90Sr

Hejmara baristeyî90
neutron number52
Giraniya atomê
89,90772787 ± 0,000001555 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
28,91 ± 0,03 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1948
parity+

decay modeintensity
β (β decay)100%

91Sr

Hejmara baristeyî91
neutron number53
Giraniya atomê
90,910195942 ± 0,000005853 Da
g-factor
-0,354 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
9,65 ± 0,06 h
spin5/2
nuclear quadrupole moment
0,042 ± 0,01
dema îcadkirinê yan keşfê1943
parity+

decay modeintensity
β (β decay)100%

92Sr

Hejmara baristeyî92
neutron number54
Giraniya atomê
91,911038222 ± 0,000003675 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,611 ± 0,017 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

decay modeintensity
β (β decay)100%

93Sr

Hejmara baristeyî93
neutron number55
Giraniya atomê
92,914024314 ± 0,000008109 Da
g-factor
-0,3172 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
7,43 ± 0,03 m
spin5/2
nuclear quadrupole moment
0,24 ± 0,01
dema îcadkirinê yan keşfê1959
parity+

decay modeintensity
β (β decay)100%

94Sr

Hejmara baristeyî94
neutron number56
Giraniya atomê
93,915355641 ± 0,000001785 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
75,3 ± 0,2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1959
parity+

decay modeintensity
β (β decay)100%

95Sr

Hejmara baristeyî95
neutron number57
Giraniya atomê
94,919358282 ± 0,000006237 Da
g-factor
-1,074 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
23,9 ± 0,14 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1961
parity+

decay modeintensity
β (β decay)100%

96Sr

Hejmara baristeyî96
neutron number58
Giraniya atomê
95,921719045 ± 0,000009089 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,059 ± 0,008 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1971
parity+

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

97Sr

Hejmara baristeyî97
neutron number59
Giraniya atomê
96,926375621 ± 0,000003633 Da
g-factor
-0,996 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
432 ± 4 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1978
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.02%

98Sr

Hejmara baristeyî98
neutron number60
Giraniya atomê
97,928692636 ± 0,000003463 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
653 ± 2 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1971
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.23%

99Sr

Hejmara baristeyî99
neutron number61
Giraniya atomê
98,932883604 ± 0,000005085 Da
g-factor
-0,174 ± 0,0033333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
269,2 ± 1 ms
spin3/2
nuclear quadrupole moment
0,76 ± 0,04
dema îcadkirinê yan keşfê1975
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.1%

100Sr

Hejmara baristeyî100
neutron number62
Giraniya atomê
99,93578327 ± 0,000007426 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
202,1 ± 1,7 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1978
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.11%

101Sr

Hejmara baristeyî101
neutron number63
Giraniya atomê
100,940606264 ± 0,000009103 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
113,7 ± 1,7 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1983
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.75%

102Sr

Hejmara baristeyî102
neutron number64
Giraniya atomê
101,944004679 ± 0,000072 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
69 ± 6 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)5.5%

103Sr

Hejmara baristeyî103
neutron number65
Giraniya atomê
102,949243 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
53 ± 10 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1997
parity+

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

104Sr

Hejmara baristeyî104
neutron number66
Giraniya atomê
103,953022 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
50,6 ± 4,2 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1997
parity+

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

105Sr

Hejmara baristeyî105
neutron number67
Giraniya atomê
104,959001 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
39 ± 5 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1997
parity+

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

106Sr

Hejmara baristeyî106
neutron number68
Giraniya atomê
105,963177 ± 0,000644 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
21 ± 8 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

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

107Sr

Hejmara baristeyî107
neutron number69
Giraniya atomê
106,969672 ± 0,000751 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Strontium destilled crystals

dîrok

kaşîf an îcadkerA. Crawford
location of discoveryScotland
dema îcadkirinê yan keşfê1790
BêjenasîFrom the Scottish town, Strontian.
pronunciationSTRON-she-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
370 mg/kg
natural abundance (Okyanûs)
7,9 mg/L
natural abundance (human body)
0,00046 %
natural abundance (meteoroid)
0,00087 %
natural abundance (Roj)
0,000005 %
Abundance in Universe
0,000004 %

Nuclear Screening Constants

1s0.8089
2p3.9696
2s10.0982
3d15.2738
3p15.8324
3s15.3362
4p26.068
4s24.5556
5s31.9295