Zlato
79
Au
Skupina
11
Perioda
6
Blok
d
Protoni
Elektroni
Nevtroni
79
79
118
Splošne lastnosti
Vrstno število
79
Atomska teža
196,966569
Masno število
197
Kategorija
Prehodne kovine
Barva
Zlata
Radioaktivno
Ne
From the Latin word aurum meaning gold
Kristalna struktura
Ploskovno centrirana kubična
Zgodovina
Gold has been known since prehistoric times and was the first metal used by humans.
Gold artifacts dated to 5000 years ago have been found in Egyptian tombs.
Gold of 98% purity has been found in Nahal Qunah in the ancient kingdom of Israel, dating from about 6000 years ago.
Gold artifacts dated to 5000 years ago have been found in Egyptian tombs.
Gold of 98% purity has been found in Nahal Qunah in the ancient kingdom of Israel, dating from about 6000 years ago.
Elektroni po lupinah
2, 8, 18, 32, 18, 1
Razporeditev elektronov
[Xe] 4f14 5d10 6s1
India is the world's largest single consumer of gold
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
19,282 g/cm3
Tališče
1337,35 K | 1064,2 °C | 1947,56 °F
Vrelišče
3129,15 K | 2856 °C | 5172,8 °F
Talilna toplota
12,5 kJ/mol
Izparilna toplota
330 kJ/mol
Toplotna kapaciteta
0,129 J/g·K
Zastopanost v Zemljini skorji
3,1×10-7%
Zastopanost v vesolju
6×10-8%
Zasluge za slike: Wikimedia Commons (Alchemist-hp)
Synthetic made gold crystals by the chemical transport reaction in chlorine gas
CAS številka
7440-57-5
PubChem CID številka
23985
Atomske lastnosti
Atomski polmer
144 pm
Kovalentni polmer
136 pm
Elektronegativnost
2,54 (Paulingova lestvica)
Ionizacijski potencial
9,2255 eV
Atomski volumen
10,2 cm3/mol
Toplotna prevodnost
3,17 W/cm·K
Oksidacijska stanja
-1, 1, 2, 3, 5
Uporabe
Gold is used in coinage and is a standard for monetary systems in many countries.
It is also extensively used for jewelry, decoration, dental work, and for plating.
Gold is used widely in microelectronic circuits to ensure reliable, corrosion-resistant and static-free performance.
Gold leaf, flake or dust is used in some gourmet foods as decorative ingredient.
It is also extensively used for jewelry, decoration, dental work, and for plating.
Gold is used widely in microelectronic circuits to ensure reliable, corrosion-resistant and static-free performance.
Gold leaf, flake or dust is used in some gourmet foods as decorative ingredient.
Gold is considered to be non-toxic
Izotopi
Stabilni izotopi
197AuNestabilni izotopi
169Au, 170Au, 171Au, 172Au, 173Au, 174Au, 175Au, 176Au, 177Au, 178Au, 179Au, 180Au, 181Au, 182Au, 183Au, 184Au, 185Au, 186Au, 187Au, 188Au, 189Au, 190Au, 191Au, 192Au, 193Au, 194Au, 195Au, 196Au, 198Au, 199Au, 200Au, 201Au, 202Au, 203Au, 204Au, 205Au