Stronsiy
38
Sr
Guruh
2
Davr
5
Block
s
Protonlar
Elektronlar
Neytronlar
38
38
50
General Properties
Atom raqami
38
Atom massasi
87,62
Mass Number
88
Turkum
Ishqoriy yer metallar
Ranggi
Silver
Radioaktivlik
Yoʻq
Named after Strontian, a town in Scotland
Crystal Structure
Face Centered Cubic
Tarix
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.
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.
Electrons per shell
2, 8, 18, 8, 2
Elektron konfiguratsiyasi
[Kr] 5s2
Strontium metal turns yellow when exposed to air
Physical Properties
Phase
Qattiq modda
Zichlik
2,64 g/cm3
Erish harorati
1050,15 K | 777 °C | 1430,6 °F
Qaynash harorati
1655,15 K | 1382 °C | 2519,6 °F
Heat of Fusion
8 kJ/mol
Heat of Vaporization
137 kJ/mol
Solishtirma issiqlik sigʻimi
0,301 J/g·K
Abundance in Earth's crust
0,036%
Abundance in Universe
4×10-6%
Image Credits: Wikimedia Commons (Alchemist-hp)
The chemical element strontium as a synthetic made crystals, sealed under argon in a glas ampoule
CAS Number
7440-24-6
PubChem CID Number
5359327
Atomic Properties
Atom radiusi
215 pm
Kovalentlik radiusi
195 pm
Elektrmanfiylik
0,95 (Poling boʻyicha)
Ionization Potential
5,6949 eV
Molyar hajm
33,7 cm3/mol
Issiqlik oʻtkazuvchanlik
0,353 W/cm·K
Oksidlanish darajasi
1, 2
Applications
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.
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.
Strontium's non-radioactive isotopes are considered non-toxic
Izotoplar
Barqaror izotoplar
84Sr, 86Sr, 87Sr, 88SrBeqaror izotoplar
73Sr, 74Sr, 75Sr, 76Sr, 77Sr, 78Sr, 79Sr, 80Sr, 81Sr, 82Sr, 83Sr, 85Sr, 89Sr, 90Sr, 91Sr, 92Sr, 93Sr, 94Sr, 95Sr, 96Sr, 97Sr, 98Sr, 99Sr, 100Sr, 101Sr, 102Sr, 103Sr, 104Sr, 105Sr