1
H
.
 1
D
.

Hi-Res Images of
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
Uut

 114
Fl

 115
Uup

 116
Lv

 117
Uus

 118
Uuo

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 |

   24    

24 Cr Chromium

Transition metal, mass: 51.996 u, 3 stable isotopes (52, 53, 54), abundance rank (earth/space): 21/16

Click image to magnify. Pure chromium piece, about 20 grams. Original size in cm: 2 x 2
Chromium Chromium with spectrum line
Chromium is a very hard and shiny silvery metal and has many colorful compounds. A lot of these are quite toxic. Chromium(VI), e.g. as CrO3, is a very dangerous environmental toxin. Elemental chromium is widely used for plating for optical reasons and corrosion protection. Chromium is added to steel, to make it stainless.

Chromium same piece Chromium dioxide cassette tape
Right: Cassette tape, coated with chromium dioxide (CrO2). Cr4+ is dark brown to black.

Ruby Ruby under black light
Natural ruby, Al2O3 and Cr2O3. Cr3+ actually is green, but in this combination causes a red color (left) and fluoresces under UV light (right). Original size in cm: 0.5 x 0.8.




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.