Goud

79
Au
Groep
11
Periode
6
Blok
d
Protrone
Elektrone
Neutrone
79
79
118
Algemene Eienskappe
Atoom Nommer
79
Atoommassa
196,966569
Massa Nommer
197
Kategorie
Oorgangsmetale
Kleur
Goud
Radioaktief
Nee
From the Latin word aurum meaning gold
Kristalstruktuur
Gesiggesentreerde kubieke
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 32, 18, 1
Elektronkonfigurasie
[Xe] 4f14 5d10 6s1
Au
India is the world's largest single consumer of gold
Fisiese Eienskappe
Fase
Soliede
Digtheid
19,282 g/cm3
Smeltpunt
1337,35 K | 1064,2 °C | 1947,56 °F
Kookpunt
3129,15 K | 2856 °C | 5172,8 °F
Heat of Fusion
12,5 kJ/mol
Heat of Vaporization
330 kJ/mol
Spesifieke Hitte Kapasiteit
0,129 J/g·K
Oorvloed in die aardkors
3,1×10-7%
Oorvloed in die heelal
6×10-8%
Synthetic
Beeld Krediete: Wikimedia Commons (Alchemist-hp)
Synthetic made gold crystals by the chemical transport reaction in chlorine gas
CAS Nommer
7440-57-5
PubChem CID Nommer
23985
Atomiese Eienskappe
Atoom radius
144 pm
Kovalente Radius
136 pm
Elektronegatiewiteit
2,54 (Pauling scale)
Ionisasie potensiaal
9,2255 eV
Atoom volume
10,2 cm3/mol
Termiese geleidingsvermoë
3,17 W/cm·K
Oksidasiestate
-1, 1, 2, 3, 5
Toepassings
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.
Gold is considered to be non-toxic
Isotope
Stabiele Isotope
197Au
Onstabiele Isotope
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