Stroncij[um] (Sr)

hemijski element sa simbolom Sr i atomskim brojem 38

Atomic Number	38
Atomic Weight	87.62
Maseni broj	88

Group	2
Period	5
Block	s

Proton	38 p⁺
Neutron	50 n⁰
Elektron	38 e^-

Animated Bohrov model atoma of Sr (Stroncij[um])

Physical Property

Atomski Radijus	200 pm 279 pm
Molarni volumen	33,7 cm³/mol
covalent radius	185 pm 157 pm 139 pm 195 pm 195 pm
Metallic Radius	191 pm 215 pm
Ionski radijus	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 Waalsov radijus	255 pm 249 pm 300 pm 249 pm 364,1 pm
gustoća	2,64 g/cm³ 2.375 kg/m³

Chemical Property

energija

proton affinity
electron affinity	0,048 eV/particle
ionization energy	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

Toplota isparavanja	144 kJ/mol
toplota topljenja	9,2 kJ/mol
standard enthalpy of formation	164 kJ/mol
Elektron

electron shell	2, 8, 18, 8, 2

Valentni elektron	2 ⓘ

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

oksidacijsko stanje	1, 2
Elektronegativnost	5,695 eV/particle 0.1185082 0.95
Electrophilicity Index	0,730062406922635 eV/particle
fundamental state of matter

agregatno stanje	Solid
gaseous state of matter
Boiling Point	1.650,15 K
Melting Point	1.050,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja	Silver #ff1493 #00ff00 #00ff00
appearance
Indeks prelamanja
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
type	Conductor
Specifična električna provodljivost	7,7 MS/m
electrical resistivity	0,00000013 Ω*m
Superprovodljivost
Magnetizam
type	paramagnetic
magnetic susceptibility (Mass)	0,00000000132 m³/Kg
magnetic susceptibility (Molar)	0,000000000116 m³/mol
magnetic susceptibility (Volume)	0,00000347
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	6,08 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Tvrdoća	1,5 MPa
bulk modulus
shear modulus	6,1 GPa
Young's modulus
Poisson's ratio	0,28
Brzina zvuka
klasifikacija
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

other

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
Kvantni brojevi	1S0
space group	225 (Fm_3m)

Isotopes of Strontium

Stable Isotopes	3
Unstable Isotopes	32
Natural Isotopes	4

⁷³Sr

Maseni broj	73
broj neutrona	35
Relative Atomic Mass	72,9657 ± 0,00043 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	25,3 ± 1,4 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1993
parity	-

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

⁷⁴Sr

Maseni broj	74
broj neutrona	36
Relative Atomic Mass	73,95617 ± 0,000107 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	27,6 ± 2,6 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1995
parity	+

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

⁷⁵Sr

Maseni broj	75
broj neutrona	37
Relative Atomic Mass	74,949952767 ± 0,000236183 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	85,2 ± 2,3 ms
spin	3/2
nuclear quadrupole moment
datum otkrića	1991
parity	-

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

⁷⁶Sr

Maseni broj	76
broj neutrona	38
Relative Atomic Mass	75,94176276 ± 0,000037 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,89 ± 0,07 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1990
parity	+

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

⁷⁷Sr

Maseni broj	77
broj neutrona	39
Relative Atomic Mass	76,937945454 ± 0,0000085 Da
g-factor	-0,1392 ± 0,0016
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9 ± 0,2 s
spin	5/2
nuclear quadrupole moment	1,27 ± 0,05
datum otkrića	1976
parity	+

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

⁷⁸Sr

Maseni broj	78
broj neutrona	40
Relative Atomic Mass	77,932179979 ± 0,000008 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	156,1 ± 2,7 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1982
parity	+

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

⁷⁹Sr

Maseni broj	79
broj neutrona	41
Relative Atomic Mass	78,929704692 ± 0,000007967 Da
g-factor	-0,316 ± 0,0026666666666667
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,25 ± 0,1 m
spin	3/2
nuclear quadrupole moment	0,661 ± 0,006
datum otkrića	1972
parity	-

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

⁸⁰Sr

Maseni broj	80
broj neutrona	42
Relative Atomic Mass	79,924517538 ± 0,000003718 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	106,3 ± 1,5 m
spin	0
nuclear quadrupole moment	0
datum otkrića	1961
parity	+

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

⁸¹Sr

Maseni broj	81
broj neutrona	43
Relative Atomic Mass	80,923211393 ± 0,000003358 Da
g-factor	1,086 ± 0,008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	22,3 ± 0,4 m
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1952
parity	-

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

⁸²Sr

Maseni broj	82
broj neutrona	44
Relative Atomic Mass	81,918399845 ± 0,000006432 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	25,35 ± 0,03 d
spin	0
nuclear quadrupole moment	0
datum otkrića	1952
parity	+

decay mode	intensity
ϵ (electron capture)	100%

⁸³Sr

Maseni broj	83
broj neutrona	45
Relative Atomic Mass	82,917554372 ± 0,000007336 Da
g-factor	-0,237 ± 0,0002
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	32,41 ± 0,03 h
spin	7/2
nuclear quadrupole moment	0,708 ± 0,011
datum otkrića	1952
parity	+

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

⁸⁴Sr

Maseni broj	84
broj neutrona	46
Relative Atomic Mass	83,913419118 ± 0,000001334 Da
g-factor	0
natural abundance	0,56 ± 0,02
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
datum otkrića	1936
parity	+

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

⁸⁵Sr

Maseni broj	85
broj neutrona	47
Relative Atomic Mass	84,912932041 ± 0,00000302 Da
g-factor	-0,22224444444444 ± 0,00015555555555556
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	64,846 ± 0,006 d
spin	9/2
nuclear quadrupole moment	0,263 ± 0,014
datum otkrića	1940
parity	+

decay mode	intensity
ϵ (electron capture)	100%

⁸⁶Sr

Maseni broj	86
broj neutrona	48
Relative Atomic Mass	85,90926072473 ± 0,00000000563 Da
g-factor	0
natural abundance	9,86 ± 0,2
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1931
parity	+

⁸⁷Sr

Maseni broj	87
broj neutrona	49
Relative Atomic Mass	86,90887749454 ± 0,0000000055 Da
g-factor	-0,24292444444444 ± 0,000024444444444444
natural abundance	7 ± 0,2
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	9/2
nuclear quadrupole moment	0,305 ± 0,002
datum otkrića	1931
parity	+

⁸⁸Sr

Maseni broj	88
broj neutrona	50
Relative Atomic Mass	87,905612253 ± 0,000000006 Da
g-factor	0
natural abundance	82,58 ± 0,35
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1923
parity	+

⁸⁹Sr

Maseni broj	89
broj neutrona	51
Relative Atomic Mass	88,907450808 ± 0,000000098 Da
g-factor	-0,4592 ± 0,0008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	50,563 ± 0,025 d
spin	5/2
nuclear quadrupole moment	-0,253 ± 0,008
datum otkrića	1937
parity	+

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

⁹⁰Sr

Maseni broj	90
broj neutrona	52
Relative Atomic Mass	89,90772787 ± 0,000001555 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	28,91 ± 0,03 y
spin	0
nuclear quadrupole moment	0
datum otkrića	1948
parity	+

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

⁹¹Sr

Maseni broj	91
broj neutrona	53
Relative Atomic Mass	90,910195942 ± 0,000005853 Da
g-factor	-0,354 ± 0,0008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9,65 ± 0,06 h
spin	5/2
nuclear quadrupole moment	0,042 ± 0,01
datum otkrića	1943
parity	+

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

⁹²Sr

Maseni broj	92
broj neutrona	54
Relative Atomic Mass	91,911038222 ± 0,000003675 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,611 ± 0,017 h
spin	0
nuclear quadrupole moment	0
datum otkrića	1956
parity	+

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

⁹³Sr

Maseni broj	93
broj neutrona	55
Relative Atomic Mass	92,914024314 ± 0,000008109 Da
g-factor	-0,3172 ± 0,0008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,43 ± 0,03 m
spin	5/2
nuclear quadrupole moment	0,24 ± 0,01
datum otkrića	1959
parity	+

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

⁹⁴Sr

Maseni broj	94
broj neutrona	56
Relative Atomic Mass	93,915355641 ± 0,000001785 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	75,3 ± 0,2 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1959
parity	+

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

⁹⁵Sr

Maseni broj	95
broj neutrona	57
Relative Atomic Mass	94,919358282 ± 0,000006237 Da
g-factor	-1,074 ± 0,004
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	23,9 ± 0,14 s
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1961
parity	+

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

⁹⁶Sr

Maseni broj	96
broj neutrona	58
Relative Atomic Mass	95,921719045 ± 0,000009089 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,059 ± 0,008 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1971
parity	+

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

⁹⁷Sr

Maseni broj	97
broj neutrona	59
Relative Atomic Mass	96,926375621 ± 0,000003633 Da
g-factor	-0,996 ± 0,004
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	432 ± 4 ms
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1978
parity	+

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

⁹⁸Sr

Maseni broj	98
broj neutrona	60
Relative Atomic Mass	97,928692636 ± 0,000003463 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	653 ± 2 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1971
parity	+

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

⁹⁹Sr

Maseni broj	99
broj neutrona	61
Relative Atomic Mass	98,932883604 ± 0,000005085 Da
g-factor	-0,174 ± 0,0033333333333333
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	269,2 ± 1 ms
spin	3/2
nuclear quadrupole moment	0,76 ± 0,04
datum otkrića	1975
parity	+

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

¹⁰⁰Sr

Maseni broj	100
broj neutrona	62
Relative Atomic Mass	99,93578327 ± 0,000007426 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	202,1 ± 1,7 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1978
parity	+

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

¹⁰¹Sr

Maseni broj	101
broj neutrona	63
Relative Atomic Mass	100,940606264 ± 0,000009103 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	113,7 ± 1,7 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1983
parity	-

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

¹⁰²Sr

Maseni broj	102
broj neutrona	64
Relative Atomic Mass	101,944004679 ± 0,000072 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	69 ± 6 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1986
parity	+

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

¹⁰³Sr

Maseni broj	103
broj neutrona	65
Relative Atomic Mass	102,949243 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	53 ± 10 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1997
parity	+

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

¹⁰⁴Sr

Maseni broj	104
broj neutrona	66
Relative Atomic Mass	103,953022 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	50,6 ± 4,2 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1997
parity	+

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

¹⁰⁵Sr

Maseni broj	105
broj neutrona	67
Relative Atomic Mass	104,959001 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	39 ± 5 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1997
parity	+

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

¹⁰⁶Sr

Maseni broj	106
broj neutrona	68
Relative Atomic Mass	105,963177 ± 0,000644 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	21 ± 8 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	2010
parity	+

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

¹⁰⁷Sr

Maseni broj	107
broj neutrona	69
Relative Atomic Mass	106,969672 ± 0,000751 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1/2
nuclear quadrupole moment	0
datum otkrića	2010
parity	+

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

historija

otkrivač ili izumitelj	A. Crawford
mjesto otkrića	Scotland
datum otkrića	1790
Etimologija	From the Scottish town, Strontian.
pronunciation	STRON-she-em (engleski)

izvor

Abundance
Abundance in Earth's crust	370 mg/kg
natural abundance (okean)	7,9 mg/L
natural abundance (ljudsko tijelo)	0,00046 %
natural abundance (Meteoroidi)	0,00087 %
natural abundance (Sunce)	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

Stroncij[um] on ChemicalAid

AAT identifikator	300379545
Australian Educational Vocabulary ID	scot/3578
BNCF pojmovnik	40655
BNF kod	12169122m
Biblioteca Nacional de España ID	XX528414
Brockhaus Enzyklopädie online ID	strontium
CAB ID	18811
CAS broj	7440-24-6
CPV Supplementary	AA34
ChEBI ID	33324
ChemSpider ID	4514263
Common Procurement Vocabulary	14772000
DSSTOX compound identifier	DTXCID50875720
DSSTox substance ID	DTXSID3024312
Den Store Danske ID	strontium
ECHA Substance Infocard ID	100.028.303
Encyclopædia Britannica Online ID	science/strontium
Encyclopædia Universalis ID	strontium
GND	4183762-9
Golden ID	Strontium-VWJ5P
Gran Enciclopèdia Catalana ID	0106810
Great Russian Encyclopedia Online ID	4169533
HSDB ID	2545
Human Metabolome Database ID	HMDB0003642
ICSC ID	1534
ID Quora teme	Strontium
ID na KBpediji	Strontium
InChIKey	CIOAGBVUUVVLOB-UHFFFAOYSA-N
InChl	InChI=1S/Sr
KEGG ID	C13884
Krugosvet article	biologiya/stronciy
LCCN	sh85129178
MeSH ID	D013324
NALT ID	6424
NE.se ID	strontium
NKC identifikator	ph543045
Namuwiki ID	스트론튬
National Library of Israel J9U ID	987007541334305171
OmegaWiki određeno značenje	3646
OpenAlex ID	C518915863
PSH ID	5753
PubChem ID (CID)	5359327
RxNorm ID	10122
Römpp online ID	RD-19-04457
Store norske leksikon ID	strontium
Treccani's Enciclopedia Italiana ID	stronzio
Treccani ID	stronzio
UNII	YZS2RPE8LE
USGS Thesaurus ID	1581
Web NDL autoriteti	00571781
WordNet 3.1 Synset ID	14679910-n
YSO ID	3096
ZVG broj	8310
broj na Freebaseu	/m/025sf8p

Stroncij[um] (Sr)

Physical Property

Chemical Property

other

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

historija

izvor

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