Au

Dahab

Qaybta 79 · 196.97 u

Midab: d-block Waqtiga 6 _Dhaqdhaqaaq 11 Cidhiidhi at RT Wikipedia →

Dahabku waa bir qaali ah oo loogu talagalay quruxdeeda, nadiifinta, iyo iska caabinta daxalka.

Eeg astaamaha

Atomic mass196.97 u
Cidhiidhi19.282 g/cm³
Natiijooyinka1337.33 K
Natiijooyinka3129.0 K
MuuqaalkaMadow
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity2.54 (Pauling)
1st Ionization890.1 kJ/mol
Istaraatiijiyad222.8 kJ/mol
Nidaamka+1, +2, +3, +5

_Cusub:

Nidaamka[Xe] 4f14 5d10 6s1
Awooda144.0 pm
Xaraf136.0 pm
Van der Waals166.0 pm

Dib u eegista

La OgaadayKnown since antiquity
_MeelQaar (Magaalada Dhexe)
MagacaabistaAnglo- Saxonii 'geolo' macnaheedu waa madow; calaamad Au ka Latin 'aurum'

_Warbixinta Dahab

Dahabku waa mid iftiin leh, yar oo cagaar ah-cagaaran, cufan, fudud, malleable, iyo birta ductile. Waa mid ka mid ah waxyaabaha ugu yar ee waxyeelada leh. A ooons kaliya waxaa lagu garaaci karaa 300 mitir oo laba jibbaaran. Waxay muujisay maal taariikhda aadanaha oo dhan.

Barnaamijyada

Jewelry, lacag, qalabka elektaroonigga ah, shaqada ilkaha, aerospace daboolida, iyo daawooyinka.

Xaqiiqo xiiso leh

A oounce kaliya oo dahab ah waxaa lagu garaaci karaa 300 mitir oo laba jibbaaran oo mitir ah ama loo soo saaray 50-mitir oo xarig ah - ugu malleable ee birta oo dhan.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
197 1.0% - Haa

Nidaamka

[Xe] 4f14 5d10 6s1

La barbardhigo

La barbardhigo qaybaha kale

Fur Qalabka La Xiriirinta
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