Sr

Strontium

Qaybta 38 · 87.62 u

Alkaline Earth Metal s-block Waqtiga 5 _Dhaqdhaqaaq 2 Cidhiidhi at RT Wikipedia →

Strontium waxaa loo yaqaanaa in ay soo saaraan midab casaan ah oo iftiin leh oo dabka iyo flares.

Eeg astaamaha

Atomic mass87.62 u
Cidhiidhi2.64 g/cm³
Natiijooyinka1050.0 K
Natiijooyinka1655.0 K
MuuqaalkaCad fidsan oo madow oo bir ah.
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity0.95 (Pauling)
1st Ionization549.5 kJ/mol
Istaraatiijiyad5.03 kJ/mol
Nidaamka+1, +2

_Cusub:

Nidaamka[Kr] 5s2
Awooda215.0 pm
Xaraf195.0 pm
Van der Waals249.0 pm

Dib u eegista

La OgaadayAdair Crawford
Sannadka la helay1790
_MeelEdinburgh, Scotland
MagacaabistaStrontian, a degaanka ee Scotland

_Warbixinta Strontium

Strontium waa mid fudud, silvery-caddaan ah oo bir ah oo ku wareegsan buluug hawada. isku-dhafka ay ku gubaan crimson. radioactive isotope Strontium-90 waa qayb khatar ah oo ka mid ah nuclear daadashada.

Barnaamijyada

Dab-damiska iyo flares (qaabka guduudan), ferrite magnets, CRT glass, toothpaste for ilkaha dareen, iyo daaweynta kansarka lafaha.

Xaqiiqo xiiso leh

Strontium-90 waa mid ka mid ah qaybaha ugu khatarsan ee nukliyeerka sababtoo ah waxay ka dhigan tahay kalsiyum oo la soo saaro lafdhabarta.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
84 0.0056% - Haa
86 0.0986% - Haa
87 0.07% - Haa
88 0.8258% - Haa

Nidaamka

[Kr] 5s2

La barbardhigo

La barbardhigo qaybaha kale

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