Stroncij

Stroncij (Sr)

chemical element with symbol Sr and atomic number 38
Atomski broj38
Relativna atomska masa87.62
Maseni broj88
Skupina2
Perioda5
Bloks
proton38 p+
neutron50 n0
elektron38 e-
Animated Bohrov model atoma of Sr (Stroncij)

Physical Property

Atomski Radijus
200 pm
Molni volumen
Kovalentni Radijus
185 pm
Metallic Radius
191 pm
Ionski radijus
118 pm
Crystal Radius
132 pm
Van der Waals radius
249 pm
gustoća
2,64 g/cm³
Atomic Radii Of The Elements: Stroncij0255075100125150175200225250pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
Elektronski afinitet
ionization energy
5,6948672 eV/particle
ionization energy of Sr (Stroncij)
Toplina isparivanja
144 kJ/mol
toplina taljenja
9,2 kJ/mol
standard enthalpy of formation
164 kJ/mol
elektron
Elektronska ljuska2, 8, 18, 8, 2
Bohrov model atoma: Sr (Stroncij)
valence electron2
Lewis structure: Sr (Stroncij)
electron configuration[Kr] 5s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
Enhanced Bohrov model atoma of Sr (Stroncij)
Orbital Diagram of Sr (Stroncij)
Oksidacijski broj1, 2
Elektronegativnost
0.95
Electrophilicity Index
0,730062406922635 eV/particle
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
1.650,15 K
Talište
1.050,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja
Srebrna
appearance
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
0,0000225 1/K
molar heat capacity
26,79 J/(mol K)
Specifični toplinski kapacitet
0,306 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
7,7 MS/m
Električna otpornost i provodnost
0,00000013 m Ω
Supravodljivost
Magnetizam
typeparamagnetic
Magnetna susceptibilnost (Mass)
0,00000000132 m³/Kg
Magnetna susceptibilnost (Molar)
0,000000000116 m³/mol
Magnetna susceptibilnost (Volume)
0,00000347
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaKubna plošno centrirana (FCC)
lattice constant
6,08 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
1,5 MPa
bulk modulus
shear modulus
6,1 GPa
Youngov modul elastičnosti
Poissonov omjer
0,28
brzina zvuka
classification
KategorijaZemnoalkalijski metali, 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
Nuklearni udarni presjek
1,2
Neutron Mass Absorption
0,0005
Kvantni brojevi1S0
space group225 (Fm_3m)

Isotopes of Strontium

Stabilni izotopi3
Nestabilni izotopi32
Natural Isotopes4
Isotopic Composition8882.58%8882.58%869.86%869.86%877.00%877.00%840.56%840.56%

73Sr

Maseni broj73
neutron number35
Relativna atomska masa
72,9657 ± 0,00043 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
25,3 ± 1,4 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1993
Parnost-

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

74Sr

Maseni broj74
neutron number36
Relativna atomska masa
73,95617 ± 0,000107 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
27,6 ± 2,6 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1995
Parnost+

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

75Sr

Maseni broj75
neutron number37
Relativna atomska masa
74,949952767 ± 0,000236183 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
85,2 ± 2,3 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1991
Parnost-

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

76Sr

Maseni broj76
neutron number38
Relativna atomska masa
75,94176276 ± 0,000037 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,89 ± 0,07 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1990
Parnost+

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

77Sr

Maseni broj77
neutron number39
Relativna atomska masa
76,937945454 ± 0,0000085 Da
g-factor
−0,1392 ± 0,0016
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9 ± 0,2 s
spin5/2
nuclear quadrupole moment
1,27 ± 0,05
vrijeme otkrića ili izuma1976
Parnost+

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

78Sr

Maseni broj78
neutron number40
Relativna atomska masa
77,932179979 ± 0,000008 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
156,1 ± 2,7 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1982
Parnost+

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

79Sr

Maseni broj79
neutron number41
Relativna atomska masa
78,929704692 ± 0,000007967 Da
g-factor
−0,316 ± 0,0026666666666667
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,25 ± 0,1 m
spin3/2
nuclear quadrupole moment
0,661 ± 0,006
vrijeme otkrića ili izuma1972
Parnost-

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

80Sr

Maseni broj80
neutron number42
Relativna atomska masa
79,924517538 ± 0,000003718 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
106,3 ± 1,5 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1961
Parnost+

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

81Sr

Maseni broj81
neutron number43
Relativna atomska masa
80,923211393 ± 0,000003358 Da
g-factor
1,086 ± 0,008
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22,3 ± 0,4 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1952
Parnost-

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

82Sr

Maseni broj82
neutron number44
Relativna atomska masa
81,918399845 ± 0,000006432 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
25,35 ± 0,03 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1952
Parnost+

decay modeintensity
ϵ (electron capture)100%

83Sr

Maseni broj83
neutron number45
Relativna atomska masa
82,917554372 ± 0,000007336 Da
g-factor
−0,237 ± 0,0002
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
32,41 ± 0,03 h
spin7/2
nuclear quadrupole moment
0,708 ± 0,011
vrijeme otkrića ili izuma1952
Parnost+

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

84Sr

Maseni broj84
neutron number46
Relativna atomska masa
83,913419118 ± 0,000001334 Da
g-factor
0
natural abundance
0,56 ± 0,02
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1936
Parnost+

decay modeintensity
+ (double β+ decay)

85Sr

Maseni broj85
neutron number47
Relativna atomska masa
84,912932041 ± 0,00000302 Da
g-factor
−0,22224444444444 ± 0,00015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
64,846 ± 0,006 d
spin9/2
nuclear quadrupole moment
0,263 ± 0,014
vrijeme otkrića ili izuma1940
Parnost+

decay modeintensity
ϵ (electron capture)100%

86Sr

Maseni broj86
neutron number48
Relativna atomska masa
85,90926072473 ± 0,00000000563 Da
g-factor
0
natural abundance
9,86 ± 0,2
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1931
Parnost+

87Sr

Maseni broj87
neutron number49
Relativna atomska masa
86,90887749454 ± 0,0000000055 Da
g-factor
−0,24292444444444 ± 0,000024444444444444
natural abundance
7 ± 0,2
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin9/2
nuclear quadrupole moment
0,305 ± 0,002
vrijeme otkrića ili izuma1931
Parnost+

88Sr

Maseni broj88
neutron number50
Relativna atomska masa
87,905612253 ± 0,000000006 Da
g-factor
0
natural abundance
82,58 ± 0,35
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1923
Parnost+

89Sr

Maseni broj89
neutron number51
Relativna atomska masa
88,907450808 ± 0,000000098 Da
g-factor
−0,4592 ± 0,0008
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50,563 ± 0,025 d
spin5/2
nuclear quadrupole moment
−0,253 ± 0,008
vrijeme otkrića ili izuma1937
Parnost+

decay modeintensity
β (β decay)100%

90Sr

Maseni broj90
neutron number52
Relativna atomska masa
89,90772787 ± 0,000001555 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
28,91 ± 0,03 y
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1948
Parnost+

decay modeintensity
β (β decay)100%

91Sr

Maseni broj91
neutron number53
Relativna atomska masa
90,910195942 ± 0,000005853 Da
g-factor
−0,354 ± 0,0008
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,65 ± 0,06 h
spin5/2
nuclear quadrupole moment
0,042 ± 0,01
vrijeme otkrića ili izuma1943
Parnost+

decay modeintensity
β (β decay)100%

92Sr

Maseni broj92
neutron number54
Relativna atomska masa
91,911038222 ± 0,000003675 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,611 ± 0,017 h
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1956
Parnost+

decay modeintensity
β (β decay)100%

93Sr

Maseni broj93
neutron number55
Relativna atomska masa
92,914024314 ± 0,000008109 Da
g-factor
−0,3172 ± 0,0008
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,43 ± 0,03 m
spin5/2
nuclear quadrupole moment
0,24 ± 0,01
vrijeme otkrića ili izuma1959
Parnost+

decay modeintensity
β (β decay)100%

94Sr

Maseni broj94
neutron number56
Relativna atomska masa
93,915355641 ± 0,000001785 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
75,3 ± 0,2 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1959
Parnost+

decay modeintensity
β (β decay)100%

95Sr

Maseni broj95
neutron number57
Relativna atomska masa
94,919358282 ± 0,000006237 Da
g-factor
−1,074 ± 0,004
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
23,9 ± 0,14 s
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1961
Parnost+

decay modeintensity
β (β decay)100%

96Sr

Maseni broj96
neutron number58
Relativna atomska masa
95,921719045 ± 0,000009089 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,059 ± 0,008 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1971
Parnost+

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

97Sr

Maseni broj97
neutron number59
Relativna atomska masa
96,926375621 ± 0,000003633 Da
g-factor
−0,996 ± 0,004
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
432 ± 4 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1978
Parnost+

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

98Sr

Maseni broj98
neutron number60
Relativna atomska masa
97,928692636 ± 0,000003463 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
653 ± 2 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1971
Parnost+

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

99Sr

Maseni broj99
neutron number61
Relativna atomska masa
98,932883604 ± 0,000005085 Da
g-factor
−0,174 ± 0,0033333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
269,2 ± 1 ms
spin3/2
nuclear quadrupole moment
0,76 ± 0,04
vrijeme otkrića ili izuma1975
Parnost+

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

100Sr

Maseni broj100
neutron number62
Relativna atomska masa
99,93578327 ± 0,000007426 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
202,1 ± 1,7 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1978
Parnost+

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

101Sr

Maseni broj101
neutron number63
Relativna atomska masa
100,940606264 ± 0,000009103 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
113,7 ± 1,7 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1983
Parnost-

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

102Sr

Maseni broj102
neutron number64
Relativna atomska masa
101,944004679 ± 0,000072 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
69 ± 6 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1986
Parnost+

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

103Sr

Maseni broj103
neutron number65
Relativna atomska masa
102,949243 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
53 ± 10 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1997
Parnost+

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

104Sr

Maseni broj104
neutron number66
Relativna atomska masa
103,953022 ± 0,000322 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50,6 ± 4,2 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1997
Parnost+

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

105Sr

Maseni broj105
neutron number67
Relativna atomska masa
104,959001 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
39 ± 5 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1997
Parnost+

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

106Sr

Maseni broj106
neutron number68
Relativna atomska masa
105,963177 ± 0,000644 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21 ± 8 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

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

107Sr

Maseni broj107
neutron number69
Relativna atomska masa
106,969672 ± 0,000751 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

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

povijest

otkrio/izumioA. Crawford
location of discoveryScotland
vrijeme otkrića ili izuma1790
EtimologijaFrom the Scottish town, Strontian.
pronunciationSTRON-she-em (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
370 mg/kg
natural abundance (ocean)
7,9 mg/L
natural abundance (tijelo)
0,00046 %
natural abundance (meteoroid)
0,00087 %
natural abundance (Sunce)
0,000005 %
Zastupljenost u svemiru
0,000004 %

Nuclear Screening Constants

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