Злато

79
Au
Група
11
Периода
6
блок
d
Protons
Electrons
Neutrons
79
79
118
Општи Својства
Атомски број
79
Атомска тежина
196,966569
Mass Number
197
Category
Преоден метал
Color
Gold
Radioactive
Не
From the Latin word aurum meaning gold
Кристална структура
Face Centered Cubic
History
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.
Electrons per shell
2, 8, 18, 32, 18, 1
Електронска конфигурација
[Xe] 4f14 5d10 6s1
Au
India is the world's largest single consumer of gold
Физички Својства
Фаза
Solid
Густина
19,282 g/cm3
Точка на топење
1337,35 K | 1064,2 °C | 1947,56 °F
Точка на вриење
3129,15 K | 2856 °C | 5172,8 °F
Топлина на топење
12,5 kJ/mol
Топлина на испарување
330 kJ/mol
Specific Heat Capacity
0,129 J/g·K
Abundance in Earth's crust
3,1×10-7%
Abundance in Universe
6×10-8%
Synthetic
Кредити на слика: Wikimedia Commons (Alchemist-hp)
Synthetic made gold crystals by the chemical transport reaction in chlorine gas
CAS Number
7440-57-5
PubChem CID Number
23985
Атомски Својства
Атомски полупречник
144 pm
Ковалентен полупречник
136 pm
Електронегативност
2,54 (Полингова скала)
Ionization Potential
9,2255 eV
Atomic Volume
10,2 cm3/mol
Thermal Conductivity
3,17 W/cm·K
Oxidation States
-1, 1, 2, 3, 5
Applications
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
Isotopes
Stable Isotopes
197Au
Unstable Isotopes
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