# Стронсий

Стронсий, 38Sr|  |
| Стронсий |
| Талаффуз | /ˈstrɒnʃiəm, -tiəm/ ​(*STRON-shee-əm, -⁠tee-əm*) |
| Номи дигар | strontium |
| Намуди зоҳирӣ | сафеди нуқрагуни металлӣ |
| Вазни атомии муқаррарӣ *A*r, std(Sr) | 7001876200000000000♠87.62(1) |
| Стронсий дар ҷадвали даврӣ |
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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|

|  |  |  |
| --- | --- | --- |
| ҳидроген |  | ҳелий |
| литий | бериллий |  | бор (элемент) | карбон | натрий | оксиген | фтор | неон |
| натрий | магний |  | алюминий | силитсий | фосфор | сулфур | хлор | аргон |
| калий | калсий | скандий |  | титан (элемент) | ванадий | хром | манган | оҳан | кобалт | никел | мис | руҳ | галлий | германий | арсен | селен | бром | криптон |
| рубидий | стронсий | иттрий |  |  | сирконий | ниобий | молибден | технетсий | рутений | родий | палладий | нуқра | кадмий | индий | қалъагӣ | сурма | теллур | йод | ксенон |
| сезий | барий | лантан | серий | празеодим | неодим | прометий | самарий | европий | гадолиний | тербий | диспрозий | ҳолмий | эрбий | тулий | иттербий | лютесий | ҳафний | тантал | волфрам | рений | осмий | иридий | платина | тилло | симоб | таллий | сурб | висмут | полоний | астат | радон |
| франcий | радий | актиний | торий | протактиний | уран (элемент) | нептуний | плутоний | америcий | кюрий | берклий | калифорний | эйнштейний | фермий | менделевий | нобелий | лоуренсий | резерфордий | дубний | сиборгий | борий | ҳассий | мейтнерий | дармштадтий | рентгений | коперниcий | ниҳоний | флеровий | московиум | ливерморий | теннесин | оганессон |

 | Ca ↑ **Sr** ↓ Ba |
| рубидий ← **стронсий** → иттрий |

 |

 |
| Рақами атомӣ (*Z*) | 38 |
| Гурӯҳ | гурӯҳи 2 (металлҳои заминии ишқорӣ) |
| Давр | даври 5  |
| Блок | s-блок  |
| Категорияи элемент |   Металли заминии ишқорӣ |
| Конфигуратсияи электрон | [Kr] 5s2 |
| Электронҳо аз рӯӣ ҷилд | 2, 8, 18, 8, 2 |
| Хосиятҳои физикӣ |
| Фаза дар ҲФМ | сахт |
| Нуқтаи гудозиш | 1050 K ​(777 °C, ​1431 °F)  |
| Ҳарорати ҷӯшиш | 1650 K ​(1377 °C, ​2511 °F)  |
| Зичӣ (наздик ба ҳ.х.) | 2.64 гр/см3 |
| ҳангоми моеъ будан (дар н.г.) | 2.375 гр/см3  |
| Ҳарорати гудозиши хос | 7.43 кҶ/мол  |
| Ҳарорати буғшавии хос | 141 кҶ/мол  |
| Гармигунҷоиши молярӣ | 26.4 Ҷ/(мол·К)  |
| **Буғи сершуда**

| *P* (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| --- | --- | --- | --- | --- | --- | --- |
| at *T* (K) | 796 | 882 | 990 | 1139 | 1345 | 1646 |

 |
| Хосиятҳои атомӣ |
| Дараҷаҳои оксидшавӣ | +1, **+2** (a strongly basic oxide) |
| Электроманфиият | Ҷадвали Полинг: 0.95  |
| Қувваҳои иондоршавӣ | * 1-ум: 549.5 кҶ/мол
* 2-юм: 1064.2 кҶ/мол
* 3-юм: 4138 кҶ/мол
*
 |
| Радиуси атом | эмпирикӣ: 215 пм  |
| Радиуси ковалентӣ | 195±10 пм  |
| Радиуси Ван дер Ваалс | 249 пм  |
| Color lines in a spectral range**Хатҳои спектрии Стронсий** |
| Дигар хосиятҳо |
| Сохтори булӯрӣ |  ​face-centered cubic (fcc) |
| Васеъшавии ҳароратӣ | 22.5 µm/(m·K) (дар 25 °C)  |
| Гармигузаронандагӣ | 35.4 W/(m·K)  |
| Муқобилияти нисбӣ | 132 nΩ·m (дар 20 °C)  |
| Тартибории магнитӣ | парамагнетик  |
| Таъсирпазирии магнитӣ | −92.0·10−6 см3/мол (298 K) |
| Модули Юнг | 15.7 ГПа  |
| Модули ғеҷонидан | 6.03 ГПа  |
| Коэффисиенти Пуассон | 0.28  |
| Сахтии Моос | 1.5  |
| Рақами CAS | 7440-24-6  |
| Таърих |
| Номгузорӣ | after the mineral strontianite, itself named after Strontian, Scotland |
| Кашф | William Cruickshank (1787) |
| Ҷудогузории аввалин | Ҳемфри Дэви (1808) |
| Изотопҳои асосии стронсий |
|

| Изо­топ | Мавҷу­дият | Давраи ним­таҷзия (*t*1/2) | Тарзи таҷзия | Маҳ­сул |
| --- | --- | --- | --- | --- |
| 82Sr | синт | 25.36 d | ε | 82Rb |
| 83Sr | syn | 1.35 d | ε | 83Rb |
| β+ | 83Rb |
| γ | – |
| 84Sr | 0.56% | собит |
| 85Sr | syn | 64.84 d | ε | 85Rb |
| γ | – |
| 86Sr | 9.86% | собит |
| 87Sr | 7.00% | собит |
| 88Sr | 82.58% | собит |
| 89Sr | syn | 50.52 d | ε | 89Rb |
| β− | 89Y |
| 90Sr | trace | 28.90 y | β− | 90Y |

 |
|

**Стронсий** (лот. strontium) — унсури химиявӣ, рақами атомиаш 38 буда бо рамзи **Sr** ишора карда мешавад.

Дар ҷадвали даврии ҳозира замон, Стронсий дар блоки s ва дар 2-юм гурӯҳи элементҳо ҷойгир мебошад.

## Хосиятҳо

### Физикӣ

### Химиявӣ

### Атомӣ

### Изотопҳо

### Мавҷудият дар табиат

## Таърих

### Кашф

### Номгузорӣ

## Пайвандҳо

* Ҷадвали даврии унсурҳои кимёӣ

## Эзоҳ

## Адабиёт

* *Менделеев Д. И.* Элементы химические // Энциклопедический словарь Брокгауза и Ефрона : в 86 т. (82 т. и 4 доп.). — СПб., 1890—1907.

## Ҳаволаҳои беруна

Анбори Википедиа дар бораи ин мавзӯъ гурӯҳ дорад:
Стронсий