Strontium (Sr)

Ciri-Ciri Umum

Simbol Sr
Nombor Atom 38
Berat atom 87.62
Kumpulan
2 (logam bumi beralkali atau keluarga berilium)
IIA (IUPAC), IIA (CAS)
Solid, Paramagnetic, Conductor, Alkaline Earth Metal, Metal, Stable, Natural
Tempoh 5
Blok s

Ciri-Ciri Fizikal

Ketumpatan 2.54 g/cm3
Isipadu Atom 33.7 cm3/mole
Radius Atom 2.15 angstroms
Radius Kovalen 192 pm
Crust Abundance 0.036%
Crystal Structure Cubic: Face centered
Color Silver

Tenaga

Keelektronegatifan 1.0 (Skala Pauling)
Afiniti Elektron 5.03 kJ/mol
Pengionan Tenaga Pertama 550 kJ/mol
ke2 Ionization Energy 1064.2 kJ/mol
ke3 Ionization Energy 4138 kJ/mol
ke4 Ionization Energy 5500 kJ/mol
ke5 Ionization Energy 6910 kJ/mol
ke6 Ionization Energy 8760 kJ/mol
ke7 Ionization Energy 10230 kJ/mol
ke8 Ionization Energy 11800 kJ/mol
ke9 Ionization Energy 15600 kJ/mol
ke10 Ionization Energy 17100 kJ/mol
ke11 Ionization Energy 31270 kJ/mol
Kapasiti Haba Spesifik 0.3 J g−1 K−1
Konduktivit Termal 35.3 W·m−1·K−1

Elektron & Pengoksidaan

Keadaan Oksidisasi 2
Elektron Setiap Petala 2 8 18 8 2
Konfigurasi Elektron [Kr] 5s2
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2
Diagram Orbital
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
 
 
 
 
 
4f
 
 
 
 
 
 
 
5s
↿⇂
5p
 
 
 
5d
 
 
 
 
 
5f
 
 
 
 
 
 
 

Nuclear

Radioaktif Tidak

Media

Model Planetari Bohr Strontium (Sr)
Rajah Dot Lewis Strontium (Sr)
Description
Soft, malleable, silvery-yellow metal.
Uses
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.
Pronounciation (English)
STRON-she-em

Terjemahan

Afrikaans Strontium
Aragonese Estronzio
العربية سترانشيوم
Armãneashte Strontsiumu
asturianu Estronciu
azərbaycan dili Stronsium
български Стронций
বাংলা স্ট্রনসিয়াম
brezhoneg Strontiom
bosanski Stroncij[um]
Byelorussian Стронцый
Cebuano Estronsyo
čeština Stroncium
Chuvash Стронци
Cymraeg Estronci
dansk Strontium
Deutsch Strontium
Ελληνικά Στροντιο
English Strontium
esperanto Stroncio
español Estroncio
eesti Strontsium
euskara Estrontzioa
فارسی استرونسیم
suomi Strontium
føroyskt Strontium
français Strontium
furlan Stronzi
West-Frysk Strontium
Gaeilge Strointiam
Gàidhlig Strointiam
galego Estroncio
ગુજરાતી સ્ટ્રૉંટીયમનો
Gaelg Stroinçhum
Hakka Chinese Sṳ̂ (鍶)
עברית סטרונציום
हिन्दी स्ट्रोन्सियम
hrvatski Stroncij
magyar Stroncium
հայերեն Ստրոնցիում
Indonesia Strontium
íslenska Strontín
italiano Stronzio
日本語 ストロンチウム
ქართული სტორცინიუმი
کٲشُر Starnt
қазақ тілі Стронций
한국어 스트논듐 or 스트론튬
Kurdish Stronsiyûm
Komi Стронций
kernewek Strontyum
кыргызча Стронций
Latin Strontium
Lëtzebuergesch Strontium
Lombard Strúnzi
lingála Sitotu
lietuvių Stroncis
latviešu Stroncijs
Mari Стронций
Maori Strontium
македонски Стронциум
മലയാളം സ്ട്രോണ്‍ഷിയം
монгол Стронци
Мокшан Стронти
Bahasa Melayu Strontium
Malti Stronzju[m]
Nahuatl Estroncio
Nederlands Strontium
norsk Strontium
Occitan Estronci
ирон Стронций
polski Stront
português Estrôncio
Runasimi Istronsyu
română Stronţiu
русский Стронций
slovenčina Stroncium
slovenščina Stroncij
Samoan Strontimi
Samogitian Struoncis
shqip Stroncium, ²Strontiumi
српски Стронцијум
Southern Sotho Strontiamo
svenska Strontium
Kiswahili Stronti
தமிழ் ஸ்ட்ரோண்டியம்
Tajik Стронсий
ไทย สทรอนเชียม
Türkçe Stronsiyum
ئۇيغۇرچە سترونتسىي
українська Стронцій
o‘zbek Stronsiy
Tiếng Việt Stronti
Võro Strontsium
中文

Sejarah

Ditemui Di
1790
Ditemui Oleh
Adair Crawford
Ditemui Pada
Scotland
Asal Perkataan
Named after the village of "Strontian" in Scotland