1
H
.
 1
D
.

Advertisement

Chemical Elements

A Virtual Museum

© Jumk.de Webprojects | Imprint & Privacy
Chemical Calculators | Atomic Collider Simulation
 2
He
.
 3
Li
...
 4
Be
...
 5
B
...
 6
C
...
 7
N
.
 8
O
.
 9
F
.
 10
Ne
.
 11
Na
...
 12
Mg
...
 13
Al
...
 14
Si
...
 15
P
...
 16
S
...
 17
Cl
.
 18
Ar
.
 19
K
...
 20
Ca
...
 21
Sc
...
 22
Ti
...
 23
V
...
 24
Cr
...
 25
Mn
...
 26
Fe
...
 27
Co
...
 28
Ni
...
 29
Cu
...
 30
Zn
...
 31
Ga
...
 32
Ge
...
 33
As
...
 34
Se
...
 35
Br
..
 36
Kr
.
 37
Rb
...
 38
Sr
...
 39
Y
...
 40
Zr
...
 41
Nb
...
 42
Mo
...
 43
Tc
...
 44
Ru
...
 45
Rh
...
 46
Pd
...
 47
Ag
...
 48
Cd
...
 49
In
...
 50
Sn
...
 51
Sb
...
 52
Te
...
 53
I
...
 54
Xe
.
 55
Cs
...
 56
Ba
...
 57-71
La-Lu

 72
Hf
...
 73
Ta
...
 74
W
...
 75
Re
...
 76
Os
...
 77
Ir
...
 78
Pt
...
 79
Au
...
 80
Hg
..
 81
Tl
...
 82
Pb
...
 83
Bi
...
 84
Po
...
 85
At
...
 86
Rn
.
 87
Fr
...
 88
Ra
...
 89-103
Ac-Lr

 104
Rf

 105
Db

 106
Sg

 107
Bh

 108
Hs

 109
Mt

 110
Ds

 111
Rg

 112
Cn

 113
Nh

 114
Fl

 115
Mc

 116
Lv

 117
Ts

 118
Og

Home | Random
All, All2, Mosaic
Concentration game
Knowledge
Element properties
Records, Archives
 57
La
...
 58
Ce
...
 59
Pr
...
 60
Nd
...
 61
Pm
...
 62
Sm
...
 63
Eu
...
 64
Gd
...
 65
Tb
...
 66
Dy
...
 67
Ho
...
 68
Er
...
 69
Tm
...
 70
Yb
...
 71
Lu
...
Islands of Stability
 89
Ac
...
 90
Th
...
 91
Pa
...
 92
U
...
 93
Np
...
 94
Pu
...
 95
Am
...
 96
Cm
...
 97
Bk
...
 98
Cf
...
 99
Es
...
 100
Fm
...
 101
Md
...
 102
No
...
 103
Lr

 Particle Zoo | Advertisement

     79    

79 Au Gold

Transition metal, mass: 196.97 u, 1 stable isotope (197), abundance rank (earth/space): 76/69

Click image to magnify. Ultrapure gold leaves. The leaves are 0.5 - 1 cm long.
Gold leaves One Gold leaf
Gold is a very rare and inert element and therefore is used since ages for jewellery and investment. It is the most malleable and ductile pure metal, so you need only very small amounts to give another material a gold plated surface. In jewellery, the very soft metal mostly is mixed with other metals like copper, to make it harder. Gold naturally only occurs in small amounts, so for its exploitation often large areas of nature are destroyed.

Gold crystal Celtic gold coin
Left: Gold crystal, pure gold, 0.7 cm.
Right: Celtic gold coin of the Iceni, from about the year 40 BCE. Probably high copper ratio, front and back side, 1.1 cm in size, 1 gram weight.

Gold connector Gold bar
Left: Gold connector of an USB plug. This is a very thin layer of gold. Gold is a good electrical conductor, protects from oxidation and gives an impression of high quality.
Right: 5 grams gold bar.

Cranberry glass button
A victorian cranberry glass button. The red color is caused by colloidal gold, which was added to the molten glass. Colloidal gold consists of gold particels with a size of nanometers, the small particle size changes the color of the metal. The diameter of the button is 1.7 cm.


Advertisement


The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted. Attribution by linking (outside of the internet credit with url) to the according element page.



Share:


 


Advertisement