Estrontzioa (Sr)

38 zenbaki atomikoa duen elementu kimikoa

Atomic Number	38
Atomic Weight	87.62
masa-zenbaki	88

Group	2
Period	5
Block	s

protoi	38 p⁺
neutroi	50 n⁰
elektroi	38 e^-

Animated Bohrren eredu atomikoa of Sr (Estrontzioa)

Propietate Fisiko

Erradio Atomiko	200 pm 279 pm
bolumen molar	33,7 cm³/mol
Erradio Kobalente	185 pm 157 pm 139 pm 195 pm 195 pm
Metallic Radius	191 pm 215 pm
Erradio ioniko	118 pm 121 pm 126 pm 131 pm 136 pm 144 pm
Crystal Radius	132 pm 135 pm 140 pm 145 pm 150 pm 158 pm
Van der Waalsen erradio	255 pm 249 pm 300 pm 249 pm 364,1 pm
dentsitatea	2,64 g/cm³ 2.375 kg/m³

Magnitude Fisiko

energia

proton affinity
Afinitate elektroniko	0,048 eV/particle
ionizazio energia	5,6948672 eV/particle 11,030276 eV/particle 42,88353 eV/particle 56,28 eV/particle 71 eV/particle 88 eV/particle 104 eV/particle 121,21 eV/particle 158,3 eV/particle 177 eV/particle 324,07 eV/particle 362 eV/particle 408 eV/particle 454 eV/particle 499 eV/particle 562 eV/particle 612 eV/particle 665 eV/particle 722 eV/particle 774 eV/particle 932 eV/particle 982,1 eV/particle 1.038 eV/particle 1.105 eV/particle 1.165 eV/particle 1.211 eV/particle 1.333,4 eV/particle 1.387,19 eV/particle 3.344,7 eV/particle 3.497 eV/particle 3.664 eV/particle 3.830 eV/particle 4.053 eV/particle 4.232 eV/particle 4.465 eV/particle 4.612,397 eV/particle 19.345,587 eV/particle 20.025,23 eV/particle

Irakite-entalpia	144 kJ/mol
urtze-entalpia	9,2 kJ/mol
formazio entalpia estandarra	164 kJ/mol
elektroi

elektroi geruza	2, 8, 18, 8, 2

balentzia-elektroi	2 ⓘ

electron configuration	[Kr] 5s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s²

Oxidazio-egoera	1, 2
Elektronegatibotasun	5,695 eV/particle 0.1185082 0.95
Electrophilicity Index	0,730062406922635 eV/particle
materiaren funtsezko egoera

materiaren egoera	Solid
materiaren egoera gaseoso
Boiling Point	1.650,15 K
Melting Point	1.050,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore	Silver #ff1493 #00ff00 #00ff00
appearance
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio	0,0000225 1/K
molar heat capacity	26,79 J/(mol K)
Specific Heat Capacity	0,306 J/(g⋅K)
indize adiabatiko
electrical properties
type	Conductor
Eroankortasun elektriko	7,7 MS/m
Erresistibitate elektriko	0,00000013 Ω*m
Supereroankortasun
Magnetismo
type	paramagnetic
suszeptibilitate magnetiko (Mass)	0,00000000132 m³/Kg
suszeptibilitate magnetiko (Molar)	0,000000000116 m³/mol
suszeptibilitate magnetiko (Volume)	0,00000347
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	6,08 Å
Lattice Angles	π/2, π/2, π/2
materialen propietate mekaniko
Gogortasun	1,5 MPa
konprimagarritasun-modulu
Zizaila modulua	6,1 GPa
Youngen modulu
Poissonen modulu	0,28
Soinuaren lastertasun
classification
Category	Alkaline earth metals, Alkaline earth metals
CAS Group	IIA
IUPAC Group	IIA
Glawe Number	15
Mendeleev Number	8
Pettifor Number	15
Geochemical Class	alkaline earth metal
Goldschmidt classification	litophile

beste batzuk

Gas Basicity
polarizability	197,2 ± 0,2 a₀
C6 Dispersion Coefficient	3.175 a₀ 3.230 a₀
allotrope
Neutron cross section	1,2
Neutron Mass Absorption	0,0005
zenbaki kuantiko	1S0
talde espazial	225 (Fm_3m)

Isotopes of Strontium

Stable Isotopes	3
Unstable Isotopes	32
Natural Isotopes	4

⁷³Sr

masa-zenbaki	73
neutron number	35
Atomo-Masa Erlatibo	72,9657 ± 0,00043 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	25,3 ± 1,4 ms
spin	5/2
nuclear quadrupole moment
aurkikuntza-data	1993
parity	-

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

⁷⁴Sr

masa-zenbaki	74
neutron number	36
Atomo-Masa Erlatibo	73,95617 ± 0,000107 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	27,6 ± 2,6 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1995
parity	+

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

⁷⁵Sr

masa-zenbaki	75
neutron number	37
Atomo-Masa Erlatibo	74,949952767 ± 0,000236183 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	85,2 ± 2,3 ms
spin	3/2
nuclear quadrupole moment
aurkikuntza-data	1991
parity	-

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

⁷⁶Sr

masa-zenbaki	76
neutron number	38
Atomo-Masa Erlatibo	75,94176276 ± 0,000037 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	7,89 ± 0,07 s
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1990
parity	+

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

⁷⁷Sr

masa-zenbaki	77
neutron number	39
Atomo-Masa Erlatibo	76,937945454 ± 0,0000085 Da
g-factor	−0,1392 ± 0,0016
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	9 ± 0,2 s
spin	5/2
nuclear quadrupole moment	1,27 ± 0,05
aurkikuntza-data	1976
parity	+

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

⁷⁸Sr

masa-zenbaki	78
neutron number	40
Atomo-Masa Erlatibo	77,932179979 ± 0,000008 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	156,1 ± 2,7 s
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1982
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁹Sr

masa-zenbaki	79
neutron number	41
Atomo-Masa Erlatibo	78,929704692 ± 0,000007967 Da
g-factor	−0,316 ± 0,0026666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	2,25 ± 0,1 m
spin	3/2
nuclear quadrupole moment	0,661 ± 0,006
aurkikuntza-data	1972
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁰Sr

masa-zenbaki	80
neutron number	42
Atomo-Masa Erlatibo	79,924517538 ± 0,000003718 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	106,3 ± 1,5 m
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1961
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸¹Sr

masa-zenbaki	81
neutron number	43
Atomo-Masa Erlatibo	80,923211393 ± 0,000003358 Da
g-factor	1,086 ± 0,008
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	22,3 ± 0,4 m
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1952
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸²Sr

masa-zenbaki	82
neutron number	44
Atomo-Masa Erlatibo	81,918399845 ± 0,000006432 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	25,35 ± 0,03 d
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1952
parity	+

decay mode	intensity
ϵ (electron capture)	100%

⁸³Sr

masa-zenbaki	83
neutron number	45
Atomo-Masa Erlatibo	82,917554372 ± 0,000007336 Da
g-factor	−0,237 ± 0,0002
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	32,41 ± 0,03 h
spin	7/2
nuclear quadrupole moment	0,708 ± 0,011
aurkikuntza-data	1952
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁴Sr

masa-zenbaki	84
neutron number	46
Atomo-Masa Erlatibo	83,913419118 ± 0,000001334 Da
g-factor	0
natural abundance	0,56 ± 0,02
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1936
parity	+

decay mode	intensity
2β⁺ (double β⁺ decay)

⁸⁵Sr

masa-zenbaki	85
neutron number	47
Atomo-Masa Erlatibo	84,912932041 ± 0,00000302 Da
g-factor	−0,22224444444444 ± 0,00015555555555556
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	64,846 ± 0,006 d
spin	9/2
nuclear quadrupole moment	0,263 ± 0,014
aurkikuntza-data	1940
parity	+

decay mode	intensity
ϵ (electron capture)	100%

⁸⁶Sr

masa-zenbaki	86
neutron number	48
Atomo-Masa Erlatibo	85,90926072473 ± 0,00000000563 Da
g-factor	0
natural abundance	9,86 ± 0,2
desintegrazio erradioaktibo	isotopo egonkor
Semidesintegrazio-periodo	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1931
parity	+

⁸⁷Sr

masa-zenbaki	87
neutron number	49
Atomo-Masa Erlatibo	86,90887749454 ± 0,0000000055 Da
g-factor	−0,24292444444444 ± 0,000024444444444444
natural abundance	7 ± 0,2
desintegrazio erradioaktibo	isotopo egonkor
Semidesintegrazio-periodo	Not Radioactive ☢️
spin	9/2
nuclear quadrupole moment	0,305 ± 0,002
aurkikuntza-data	1931
parity	+

⁸⁸Sr

masa-zenbaki	88
neutron number	50
Atomo-Masa Erlatibo	87,905612253 ± 0,000000006 Da
g-factor	0
natural abundance	82,58 ± 0,35
desintegrazio erradioaktibo	isotopo egonkor
Semidesintegrazio-periodo	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1923
parity	+

⁸⁹Sr

masa-zenbaki	89
neutron number	51
Atomo-Masa Erlatibo	88,907450808 ± 0,000000098 Da
g-factor	−0,4592 ± 0,0008
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	50,563 ± 0,025 d
spin	5/2
nuclear quadrupole moment	−0,253 ± 0,008
aurkikuntza-data	1937
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹⁰Sr

masa-zenbaki	90
neutron number	52
Atomo-Masa Erlatibo	89,90772787 ± 0,000001555 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	28,91 ± 0,03 y
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1948
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹¹Sr

masa-zenbaki	91
neutron number	53
Atomo-Masa Erlatibo	90,910195942 ± 0,000005853 Da
g-factor	−0,354 ± 0,0008
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	9,65 ± 0,06 h
spin	5/2
nuclear quadrupole moment	0,042 ± 0,01
aurkikuntza-data	1943
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹²Sr

masa-zenbaki	92
neutron number	54
Atomo-Masa Erlatibo	91,911038222 ± 0,000003675 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	2,611 ± 0,017 h
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1956
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹³Sr

masa-zenbaki	93
neutron number	55
Atomo-Masa Erlatibo	92,914024314 ± 0,000008109 Da
g-factor	−0,3172 ± 0,0008
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	7,43 ± 0,03 m
spin	5/2
nuclear quadrupole moment	0,24 ± 0,01
aurkikuntza-data	1959
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹⁴Sr

masa-zenbaki	94
neutron number	56
Atomo-Masa Erlatibo	93,915355641 ± 0,000001785 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	75,3 ± 0,2 s
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1959
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹⁵Sr

masa-zenbaki	95
neutron number	57
Atomo-Masa Erlatibo	94,919358282 ± 0,000006237 Da
g-factor	−1,074 ± 0,004
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	23,9 ± 0,14 s
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1961
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁹⁶Sr

masa-zenbaki	96
neutron number	58
Atomo-Masa Erlatibo	95,921719045 ± 0,000009089 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	1,059 ± 0,008 s
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁹⁷Sr

masa-zenbaki	97
neutron number	59
Atomo-Masa Erlatibo	96,926375621 ± 0,000003633 Da
g-factor	−0,996 ± 0,004
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	432 ± 4 ms
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1978
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.02%

⁹⁸Sr

masa-zenbaki	98
neutron number	60
Atomo-Masa Erlatibo	97,928692636 ± 0,000003463 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	653 ± 2 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.23%

⁹⁹Sr

masa-zenbaki	99
neutron number	61
Atomo-Masa Erlatibo	98,932883604 ± 0,000005085 Da
g-factor	−0,174 ± 0,0033333333333333
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	269,2 ± 1 ms
spin	3/2
nuclear quadrupole moment	0,76 ± 0,04
aurkikuntza-data	1975
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.1%

¹⁰⁰Sr

masa-zenbaki	100
neutron number	62
Atomo-Masa Erlatibo	99,93578327 ± 0,000007426 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	202,1 ± 1,7 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1978
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.11%

¹⁰¹Sr

masa-zenbaki	101
neutron number	63
Atomo-Masa Erlatibo	100,940606264 ± 0,000009103 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	113,7 ± 1,7 ms
spin	5/2
nuclear quadrupole moment
aurkikuntza-data	1983
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.75%

¹⁰²Sr

masa-zenbaki	102
neutron number	64
Atomo-Masa Erlatibo	101,944004679 ± 0,000072 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	69 ± 6 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1986
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	5.5%

¹⁰³Sr

masa-zenbaki	103
neutron number	65
Atomo-Masa Erlatibo	102,949243 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	53 ± 10 ms
spin	5/2
nuclear quadrupole moment
aurkikuntza-data	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰⁴Sr

masa-zenbaki	104
neutron number	66
Atomo-Masa Erlatibo	103,953022 ± 0,000322 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	50,6 ± 4,2 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰⁵Sr

masa-zenbaki	105
neutron number	67
Atomo-Masa Erlatibo	104,959001 ± 0,000537 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	39 ± 5 ms
spin	5/2
nuclear quadrupole moment
aurkikuntza-data	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰⁶Sr

masa-zenbaki	106
neutron number	68
Atomo-Masa Erlatibo	105,963177 ± 0,000644 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	21 ± 8 ms
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	2010
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁰⁷Sr

masa-zenbaki	107
neutron number	69
Atomo-Masa Erlatibo	106,969672 ± 0,000751 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	2010
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

historia

aurkitzailea edo asmatzailea	A. Crawford
aurkikuntzaren lekua	Scotland
aurkikuntza-data	1790
etimologia	From the Scottish town, Strontian.
pronunciation	STRON-she-em (ingelesa)

source

Abundance
Abundance in Earth's crust	370 mg/kg
natural abundance (ozeano)	7,9 mg/L
natural abundance (gizakiaren gorputza)	0,00046 %
natural abundance (Meteoroide)	0,00087 %
natural abundance (Eguzkia)	0,000005 %
Abundance in Universe	0,000004 %

Nuclear Screening Constants

1	s	0.8089
2	p	3.9696
2	s	10.0982
3	d	15.2738
3	p	15.8324
3	s	15.3362
4	p	26.068
4	s	24.5556
5	s	31.9295

Estrontzioa on ChemicalAid

Estrontzioa (Sr)

Propietate Fisiko

Magnitude Fisiko

beste batzuk

Isotopes of Strontium

73Sr

74Sr

75Sr

76Sr

77Sr

78Sr

79Sr

80Sr

81Sr

82Sr

83Sr

84Sr

85Sr

86Sr

87Sr

88Sr

89Sr

90Sr

91Sr

92Sr

93Sr

94Sr

95Sr

96Sr

97Sr

98Sr

99Sr

100Sr

101Sr

102Sr

103Sr

104Sr

105Sr

106Sr

107Sr

historia

source

Nuclear Screening Constants

⁷³Sr

⁷⁴Sr

⁷⁵Sr

⁷⁶Sr

⁷⁷Sr

⁷⁸Sr

⁷⁹Sr

⁸⁰Sr

⁸¹Sr

⁸²Sr

⁸³Sr

⁸⁴Sr

⁸⁵Sr

⁸⁶Sr

⁸⁷Sr

⁸⁸Sr

⁸⁹Sr

⁹⁰Sr

⁹¹Sr

⁹²Sr

⁹³Sr

⁹⁴Sr

⁹⁵Sr

⁹⁶Sr

⁹⁷Sr

⁹⁸Sr

⁹⁹Sr

¹⁰⁰Sr

¹⁰¹Sr

¹⁰²Sr

¹⁰³Sr

¹⁰⁴Sr

¹⁰⁵Sr

¹⁰⁶Sr

¹⁰⁷Sr