Goud
79
Au
Groep
11
Periode
6
Blok
d
Protonen
Elektronen
Neutronen
79
79
118
Algemene Eigenschappen
Atoomnummer
79
Atomair gewicht
196,966569
Massa Getal
197
Categorie
Overgangsmetalen
Kleur
Goud
Radioactief
Nee
From the Latin word aurum meaning gold
Kristalstructuur
Zijvlak-gecentreerde Kubus
Historie
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.
Eletronen per schil
2, 8, 18, 32, 18, 1
Electronconfiguratie
[Xe] 4f14 5d10 6s1
India is the world's largest single consumer of gold
Fysieke Eigenschappen
Fase
Vast
Dichtheid
19,282 g/cm3
Smeltpunt
1337,35 K | 1064,2 °C | 1947,56 °F
Kookpunt
3129,15 K | 2856 °C | 5172,8 °F
Fusiewarmte
12,5 kJ/mol
Verdampingswarmte
330 kJ/mol
Specifieke Warmtecapaciteit
0,129 J/g·K
Overvloedig aanwezig in de aardkorst
3,1×10-7%
Overvloedig aanwezig in het universum
6×10-8%
Verdiensten voor afbeeldingen: Wikimedia Commons (Alchemist-hp)
Synthetic made gold crystals by the chemical transport reaction in chlorine gas
CAS-nummer
7440-57-5
PubChem CID nummer
23985
Atoomeigenschappen
Atoomstraal
144 pm
Covalentiestraal
136 pm
Electronegativiteit
2,54 (Pauling schaal)
Ionisatiepotentiaal
9,2255 eV
Atoomvolume
10,2 cm3/mol
Thermische geleiding
3,17 W/cm·K
Oxidatietoestanden
-1, 1, 2, 3, 5
Toepassingen
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
Isotopen
Stabiele isotopen
197AuInstabiele isotopen
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