Strontium (Sr)

Soft yellowish metallic element, belongs to group 2 of the periodic table. Highly reactive chemically. Sr-90 is present in radioactive fallout and has a half-life of 28 years. Discovered in 1798 by Klaproth and Hope, isolated in 1808 by Humphry Davy.

Atomic Number	38
Atomic Weight	87.62
Mass Number	88

Group	2
Period	5
Block	s

Protons	38 p⁺
Neutrons	50 n⁰
Electrons	38 e^-

Properties

Energy
Atomic Radius	200 pm 279 pm
Molar Volume	33.7 cm³/mol
Covalent Radius	185 pm 157 pm 139 pm 195 pm 195 pm
Metallic Radius	191 pm 215 pm
Ionic Radius	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 Waals Radius	255 pm 249 pm 300 pm 249 pm 364.1 pm
Density	2.64 g/cm³ 2,375 kg/m³
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

Heat of Vaporization	144 kJ/mol
Heat of Fusion	9.2 kJ/mol
Heat of Formation	164 kJ/mol
Electrons
Electron Shells	2, 8, 18, 8, 2

Valence Electrons	2

Electron Configuration	[Kr] 5s²

Oxidation States	1, 2
Electronegativity	5.695 eV/particle 0.1185082 0.95
Electrophilicity	0.730062406922635 eV/particle
Phases
Phase	Solid
Gas Phase
Boiling Point	1,650.15 K
Melting Point	1,050.15 K
Critical Pressure
Critical Temperature
Triple Point
Visual
Color	Silver #ff1493 #00ff00 #00ff00
Appearance
Refractive Index
Thermodynamic Properties
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 (Adiabatic Index)
Electrical Properties
Type	Conductor
Electrical Conductivity	7.7 MS/m
Electrical Resistivity	0.00000013 m Ω
Superconducting Point
Magnetism
Type	paramagnetic
Magnetic Susceptibility (Mass)	0.00000000132 m³/Kg
Magnetic Susceptibility (Molar)	0.000000000116 m³/mol
Magnetic Susceptibility (Volume)	0.00000347
Magnetic Ordering
Curie Point
Neel Point
Structure
Crystal Structure	Face Centered Cubic (FCC)
Lattice Constant	6.08 Å
Lattice Angles	π/2, π/2, π/2
Mechanical Properties
Hardness	1.5 MPa
Bulk Modulus
Shear Modulus	6.1 GPa
Young Modulus
Poisson Ratio	0.28
Speed of Sound
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 Class	litophile
Other
Gas Basicity
Dipole Polarizability	197.2 ± 0.2 a₀
C6 Dispersion Coefficient	3,175 a₀ 3,230 a₀
Allotropes
Neutron Cross Section	1.2
Neutron Mass Absorption	0.0005
Quantum Numbers	1S0
Space Group	225 (Fm_3m)

Isotopes of Strontium

Stable Isotopes	4
Unstable Isotopes	31
Radioactive Isotopes	31

⁷³Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	72.9657 ± 0.00043 Da
Mass Number	73
G-Factor
Half Life	25.3 ± 1.4 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1993
Parity	-

⁷³Sr Decay Modes

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

⁷⁴Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	73.95617 ± 0.000107 Da
Mass Number	74
G-Factor	0
Half Life	27.6 ± 2.6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1995
Parity	+

⁷⁴Sr Decay Modes

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

⁷⁵Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	74.949952767 ± 0.000236183 Da
Mass Number	75
G-Factor
Half Life	85.2 ± 2.3 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1991
Parity	-

⁷⁵Sr Decay Modes

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

⁷⁶Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	75.94176276 ± 0.000037 Da
Mass Number	76
G-Factor	0
Half Life	7.89 ± 0.07 s
Spin	0
Quadrupole Moment	0
Discovery Year	1990
Parity	+

⁷⁶Sr Decay Modes

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

⁷⁷Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	76.937945454 ± 0.0000085 Da
Mass Number	77
G-Factor	-0.1392 ± 0.0016
Half Life	9 ± 0.2 s
Spin	5/2
Quadrupole Moment	1.27 ± 0.05
Discovery Year	1976
Parity	+

⁷⁷Sr Decay Modes

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

⁷⁸Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	77.932179979 ± 0.000008 Da
Mass Number	78
G-Factor	0
Half Life	156.1 ± 2.7 s
Spin	0
Quadrupole Moment	0
Discovery Year	1982
Parity	+

⁷⁸Sr Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	78.929704692 ± 0.000007967 Da
Mass Number	79
G-Factor	-0.316 ± 0.0026666666666667
Half Life	2.25 ± 0.1 m
Spin	3/2
Quadrupole Moment	0.661 ± 0.006
Discovery Year	1972
Parity	-

⁷⁹Sr Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁰Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	79.924517538 ± 0.000003718 Da
Mass Number	80
G-Factor	0
Half Life	106.3 ± 1.5 m
Spin	0
Quadrupole Moment	0
Discovery Year	1961
Parity	+

⁸⁰Sr Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸¹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	80.923211393 ± 0.000003358 Da
Mass Number	81
G-Factor	1.086 ± 0.008
Half Life	22.3 ± 0.4 m
Spin	1/2
Quadrupole Moment	0
Discovery Year	1952
Parity	-

⁸¹Sr Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸²Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	81.918399845 ± 0.000006432 Da
Mass Number	82
G-Factor	0
Half Life	25.35 ± 0.03 d
Spin	0
Quadrupole Moment	0
Discovery Year	1952
Parity	+

⁸²Sr Decay Modes

Decay Mode	Intensity
ϵ (electron capture)	100%

⁸³Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	82.917554372 ± 0.000007336 Da
Mass Number	83
G-Factor	-0.237 ± 0.0002
Half Life	32.41 ± 0.03 h
Spin	7/2
Quadrupole Moment	0.708 ± 0.011
Discovery Year	1952
Parity	+

⁸³Sr Decay Modes

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁴Sr

Abundance	0.56 ± 0.02
Relative Atomic Mass	83.913419118 ± 0.000001334 Da
Mass Number	84
G-Factor	0
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1936
Parity	+

⁸⁴Sr Decay Modes

Decay Mode	Intensity
2β⁺ (double β⁺ decay)	%

⁸⁵Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	84.912932041 ± 0.00000302 Da
Mass Number	85
G-Factor	-0.22224444444444 ± 0.00015555555555556
Half Life	64.846 ± 0.006 d
Spin	9/2
Quadrupole Moment	0.263 ± 0.014
Discovery Year	1940
Parity	+

⁸⁵Sr Decay Modes

Decay Mode	Intensity
ϵ (electron capture)	100%

⁸⁶Sr

Abundance	9.86 ± 0.2
Relative Atomic Mass	85.90926072473 ± 0.00000000563 Da
Mass Number	86
G-Factor	0
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1931
Parity	+

⁸⁷Sr

Abundance	7 ± 0.2
Relative Atomic Mass	86.90887749454 ± 0.0000000055 Da
Mass Number	87
G-Factor	-0.24292444444444 ± 0.000024444444444444
Half Life
Spin	9/2
Quadrupole Moment	0.305 ± 0.002
Discovery Year	1931
Parity	+

⁸⁸Sr

Abundance	82.58 ± 0.35
Relative Atomic Mass	87.905612253 ± 0.000000006 Da
Mass Number	88
G-Factor	0
Half Life
Spin	0
Quadrupole Moment	0
Discovery Year	1923
Parity	+

⁸⁹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	88.907450808 ± 0.000000098 Da
Mass Number	89
G-Factor	-0.4592 ± 0.0008
Half Life	50.563 ± 0.025 d
Spin	5/2
Quadrupole Moment	-0.253 ± 0.008
Discovery Year	1937
Parity	+

⁸⁹Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹⁰Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	89.90772787 ± 0.000001555 Da
Mass Number	90
G-Factor	0
Half Life	28.91 ± 0.03 y
Spin	0
Quadrupole Moment	0
Discovery Year	1948
Parity	+

⁹⁰Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹¹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	90.910195942 ± 0.000005853 Da
Mass Number	91
G-Factor	-0.354 ± 0.0008
Half Life	9.65 ± 0.06 h
Spin	5/2
Quadrupole Moment	0.042 ± 0.01
Discovery Year	1943
Parity	+

⁹¹Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹²Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	91.911038222 ± 0.000003675 Da
Mass Number	92
G-Factor	0
Half Life	2.611 ± 0.017 h
Spin	0
Quadrupole Moment	0
Discovery Year	1956
Parity	+

⁹²Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹³Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	92.914024314 ± 0.000008109 Da
Mass Number	93
G-Factor	-0.3172 ± 0.0008
Half Life	7.43 ± 0.03 m
Spin	5/2
Quadrupole Moment	0.24 ± 0.01
Discovery Year	1959
Parity	+

⁹³Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹⁴Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	93.915355641 ± 0.000001785 Da
Mass Number	94
G-Factor	0
Half Life	75.3 ± 0.2 s
Spin	0
Quadrupole Moment	0
Discovery Year	1959
Parity	+

⁹⁴Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹⁵Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	94.919358282 ± 0.000006237 Da
Mass Number	95
G-Factor	-1.074 ± 0.004
Half Life	23.9 ± 0.14 s
Spin	1/2
Quadrupole Moment	0
Discovery Year	1961
Parity	+

⁹⁵Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁹⁶Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	95.921719045 ± 0.000009089 Da
Mass Number	96
G-Factor	0
Half Life	1.059 ± 0.008 s
Spin	0
Quadrupole Moment	0
Discovery Year	1971
Parity	+

⁹⁶Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%

⁹⁷Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	96.926375621 ± 0.000003633 Da
Mass Number	97
G-Factor	-0.996 ± 0.004
Half Life	432 ± 4 ms
Spin	1/2
Quadrupole Moment	0
Discovery Year	1978
Parity	+

⁹⁷Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.02%

⁹⁸Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	97.928692636 ± 0.000003463 Da
Mass Number	98
G-Factor	0
Half Life	653 ± 2 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1971
Parity	+

⁹⁸Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.23%

⁹⁹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	98.932883604 ± 0.000005085 Da
Mass Number	99
G-Factor	-0.174 ± 0.0033333333333333
Half Life	269.2 ± 1 ms
Spin	3/2
Quadrupole Moment	0.76 ± 0.04
Discovery Year	1975
Parity	+

⁹⁹Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.1%

¹⁰⁰Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	99.93578327 ± 0.000007426 Da
Mass Number	100
G-Factor	0
Half Life	202.1 ± 1.7 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1978
Parity	+

¹⁰⁰Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.11%

¹⁰¹Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	100.940606264 ± 0.000009103 Da
Mass Number	101
G-Factor
Half Life	113.7 ± 1.7 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1983
Parity	-

¹⁰¹Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.75%

¹⁰²Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	101.944004679 ± 0.000072 Da
Mass Number	102
G-Factor	0
Half Life	69 ± 6 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1986
Parity	+

¹⁰²Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	5.5%

¹⁰³Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	102.949243 ± 0.000215 Da
Mass Number	103
G-Factor
Half Life	53 ± 10 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1997
Parity	+

¹⁰³Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

¹⁰⁴Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	103.953022 ± 0.000322 Da
Mass Number	104
G-Factor	0
Half Life	50.6 ± 4.2 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1997
Parity	+

¹⁰⁴Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

¹⁰⁵Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	104.959001 ± 0.000537 Da
Mass Number	105
G-Factor
Half Life	39 ± 5 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1997
Parity	+

¹⁰⁵Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

¹⁰⁶Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	105.963177 ± 0.000644 Da
Mass Number	106
G-Factor	0
Half Life	21 ± 8 ms
Spin	0
Quadrupole Moment	0
Discovery Year	2010
Parity	+

¹⁰⁶Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

¹⁰⁷Sr

Abundance	Radioactive ☢️
Relative Atomic Mass	106.969672 ± 0.000751 Da
Mass Number	107
G-Factor
Half Life
Spin	1/2
Quadrupole Moment	0
Discovery Year	2010
Parity	+

¹⁰⁷Sr Decay Modes

Decay Mode	Intensity
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%
2n (2-neutron emission)	%

History

Strontium was recognized as a new element in 1790 when Adair Crawford and his colleague William Cruickshank analyzed a mineral sample from a lead mine near Strontian, Scotland. The element was eventually isolated by Sir Humphry Davy in 1808. The isolation was done by the electrolysis of a mixture containing strontium chloride and mercuric oxide. Named after Strontian, a town in Scotland

Discoverers	A. Crawford
Discovery Location	Scotland
Discovery Year	1790
Etymology (Name Origin)	From the Scottish town, Strontian.
Pronunciation	STRON-she-em (English)

Strontium's non-radioactive isotopes are considered non-toxic

Strontium metal turns yellow when exposed to air

Uses

The primary use for strontium is in glass for color television cathode ray tubes. Strontium salts are used in flares and fireworks for a crimson color. Strontium chloride is used in toothpaste for sensitive teeth. Strontium oxide is used to improve the quality of pottery glazes. Used in flares and fireworks for crimson color. Strontium-90 is a long lived highly radioactive fallout product of atomic-bomb explosions.

Sources

Found in minerals celestite and strontianite.

Abundance
Abundance in Earth's crust	370 mg/kg
Abundance in Oceans	7.9 mg/L
Abundance in Human Body	0.00046 %
Abundance in Meteor	0.00087 %
Abundance in Sun	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

Strontium on ChemicalAid

Art & Architecture Thesaurus ID	300379545
Australian Educational Vocabulary ID	scot/3578
BNCF Thesaurus ID	40655
Biblioteca Nacional de España ID	XX528414
Bibliothèque nationale de France ID	12169122m
Brockhaus Enzyklopädie online ID	strontium
CAB ID	18811
CAS Registry Number	7440-24-6
CPV Supplementary	AA34
ChEBI ID	33324
ChemSpider ID	4514263
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
Freebase ID	/m/025sf8p
GND ID	4183762-9
Gran Enciclopèdia Catalana ID	0106810
Great Russian Encyclopedia Online ID	4169533
HSDB ID	2545
Human Metabolome Database ID	HMDB0003642
ICSC ID	1534
InChI	InChI=1S/Sr
InChIKey	CIOAGBVUUVVLOB-UHFFFAOYSA-N
KBpedia ID	Strontium
KEGG ID	C13884
Krugosvet article	biologiya/stronciy
Library of Congress authority ID	sh85129178
MeSH descriptor ID	D013324
NALT ID	6424
NE.se ID	strontium
NKCR AUT ID	ph543045
Namuwiki ID	스트론튬
National Diet Library ID	00571781
National Library of Israel J9U ID	987007541334305171
OmegaWiki Defined Meaning	3646
OpenAlex ID	C518915863
PSH ID	5753
PubChem CID	5359327
Quora topic ID	Strontium
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
WordNet 3.1 Synset ID	14679910-n
YSO ID	3096
ZVG number	8310

Strontium (Sr)

Properties

Isotopes of Strontium

73Sr

73Sr Decay Modes

74Sr

74Sr Decay Modes

75Sr

75Sr Decay Modes

76Sr

76Sr Decay Modes

77Sr

77Sr Decay Modes

78Sr

78Sr Decay Modes

79Sr

79Sr Decay Modes

80Sr

80Sr Decay Modes

81Sr

81Sr Decay Modes

82Sr

82Sr Decay Modes

83Sr

83Sr Decay Modes

84Sr

84Sr Decay Modes

85Sr

85Sr Decay Modes

86Sr

87Sr

88Sr

89Sr

89Sr Decay Modes

90Sr

90Sr Decay Modes

91Sr

91Sr Decay Modes

92Sr

92Sr Decay Modes

93Sr

93Sr Decay Modes

94Sr

94Sr Decay Modes

95Sr

95Sr Decay Modes

96Sr

96Sr Decay Modes

97Sr

97Sr Decay Modes

98Sr

98Sr Decay Modes

99Sr

99Sr Decay Modes

100Sr

100Sr Decay Modes

101Sr

101Sr Decay Modes

102Sr

102Sr Decay Modes

103Sr

103Sr Decay Modes

104Sr

104Sr Decay Modes

105Sr

105Sr Decay Modes

106Sr

106Sr Decay Modes

107Sr

107Sr Decay Modes