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The Chemistry Portal

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Welcome to the chemistry portal. Chemistry is a branch of science. Modern chemistry focuses on the study of elements of the world and the bonds between elements. Chemistry also deals with composition, structure, and properties of substances and the transformations that they undergo. In the study of matter, chemistry also investigates its interactions with energy and itself. Because of the diversity of matter, which is mostly in the form of compounds, chemists often study how atoms of different chemical elements interact to form molecules, and how molecules interact with each other.

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Featured article - Selected picture - News - Selected biography - History and Philosophy - Techniques - Equipment - Chemistry in society - Chemistry in industry - Periodic Table - Resources - WikiProjects - Things you can do - Collaboration of the month - Related portals - Associated Wikimedia
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Featured article

Xenon tetrafluoride was first created in 1962 to be the first simple compound of xenon, a noble gas widely thought to be chemically inert. The creation opened a new era for the study of chemical bonds.
Xenon (/ˈzɛnɒn/ in the UK, /ˈziːnɒn/ in the US) is a chemical element that has the symbol Xe and atomic number 54. A colourless, dense, odourless noble gas, xenon occurs in the earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reactions such as the formation of xenon hexafluoroplatinate, the first noble gas compound to be synthesised. Naturally occurring xenon is made of nine stable isotopes, but there are also over 40 unstable isotopes that undergo radioactive decay. The isotope ratios of xenon are an important tool for studying the early history of the Solar System. Xenon-135 is produced as a result of nuclear fission and acts as a neutron absorber in nuclear reactors.
Xenon is used in flash lamps and arc lamps, and as a general anesthetic. The first excimer laser design used a xenon dimer molecule (Xe2) as its lasing medium, and the earliest laser designs used xenon flash lamps as pumps. Xenon is also being used to search for hypothetical weakly interactive massive particles and as the propellant for ion thrusters in spacecraft.
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Selected picture

Macro-photograph of Coca Cola bubbles
Credit: User:Spiff
Carbonation occurs when carbon dioxide is dissolved in water or an aqueous solution. This process yields the "fizz" to carbonated water and sparkling mineral water, the head to beer, and the cork pop and bubbles to champagne and sparkling wine. In the image, bubbles of carbon dioxide float to the surface of a carbonated soft drink.
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Categories

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History and Philosophy of Chemistry

Antoine Lavoisier
Many chemists have an interest in the history of chemistry. Those with philosophical interests will be interested that the philosophy of chemistry has quite recently developed along a path somewhat different from the general philosophy of science.
Other articles that might interest you are:
There is a Wikipedia Project on the History of Science and a portal for the philosophy of science.
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Chemistry Resources

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Wikipedia:WikiProject Chemicals/Data is a collection of links and references that are useful for chemistry-related works. This includes free online chemical databases, publications, patents, computer programs, and various tools.
Science is Fun University of Wisconsin–Madison Chemistry Professor Bassam Z. Shakhashiri, shares the fun of science.
unit-conversion.info A good place to figure out what equals what.
General Chemistry Online Clear text and comprehensive coverage of general chemistry topics by Fred Senese, Dept. of Chemistry Frostburg State University
General Chemistry Demonstration at Purdue Video clips (and descriptions) of lecture demonstrations.
Intota Chemistry Experts A large online listing of real-world chemistry expert biographies provides examples of the many areas of expertise and careers in chemistry.
Chemistry Webercises Directory A large listing of chemistry resources maintained by Steven Murov, Emeritus Chemistry Professor Modesto Junior College.
MathMol MathMol (Mathematics and Molecules) is a good starting point for those interested in the field of molecular modeling.
Chemistry Educational Resources and Essential References from Wiley, the world's largest chemistry publisher
ABC-Chemistry A directory of free full-text journals in chemistry, biochemistry and related subjects.
The Element Song A goofy little song about all of the elements.
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Selected biography

Justus von Liebig
Freiherr Justus von Liebig (1803-1873) was a German chemist who made major contributions to agricultural and biological chemistry, and worked on the organization of organic chemistry. As a professor, he devised the modern laboratory-oriented teaching method, and for such innovations, he is regarded as one of the greatest chemistry teachers of all time. The vapor condensation device he popularized for his research is still known as a Liebig condenser, although it was in common use long before Liebig's research began. He is known as the "father of the fertilizer industry" for his discovery of nitrogen as an essential plant nutrient, and his formulation of the Law of the Minimum which described the effect of individual nutrients on crops. He also invented a process for silvering that greatly improved the utility of mirrors.
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Techniques used by chemists

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Equipment used by chemists

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Chemistry in society

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Chemistry in industry

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WikiProjects

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Periodic Table

[hide]
Periodic table
Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Alkali metals Alkaline earth metals











Pnicto­gens Chal­co­gens Halo­gens Noble gases
Period
1
Hydro­gen
1
H
He­lium
2
2
Lith­ium
3
Beryl­lium
4
Boron
5
B
Carbon
6
C
Nitro­gen
7
N
Oxy­gen
8
O
Fluor­ine
9
F
Neon
10
3
So­dium
11
Magne­sium
12
Alumin­ium
13
Sili­con
14
Phos­phorus
15
P
Sulfur
16
S
Chlor­ine
17
Argon
18
4
Potas­sium
19
K
Cal­cium
20
Scan­dium
21
Tita­nium
22
Vana­dium
23
V
Chrom­ium
24
Manga­nese
25
Iron
26
Cobalt
27
Nickel
28
Copper
29
Zinc
30
Gallium
31
Germa­nium
32
Arsenic
33
Sele­nium
34
Bromine
35
Kryp­ton
36
5
Rubid­ium
37
Stront­ium
38
Yttrium
39
Y
Zirco­nium
40
Nio­bium
41
Molyb­denum
42
Tech­netium
43
Ruthe­nium
44
Rho­dium
45
Pallad­ium
46
Silver
47
Cad­mium
48
Indium
49
Tin
50
Anti­mony
51
Tellur­ium
52
Iodine
53
Xenon
54
6
Cae­sium
55
Barium
56
 1 asterisk
Haf­nium
72
Tanta­lum
73
Tung­sten
74
W
Rhe­nium
75
Os­mium
76
Iridium
77
Plat­inum
78
Gold
79
Mer­cury
80
Thallium
81
Lead
82
Bis­muth
83
Polo­nium
84
Asta­tine
85
Radon
86
7
Fran­cium
87
Ra­dium
88
 1 asterisk
Ruther­fordium
104
Dub­nium
105
Sea­borgium
106
Bohr­ium
107
Has­sium
108
Meit­nerium
109
Darm­stadtium
110
Roent­genium
111
Coper­nicium
112
Unun­trium
113
Flerov­ium
114
Unun­pentium
115
Liver­morium
116
Unun­septium
117
Unun­octium
118

1 asterisk
Lan­thanum
57
Cerium
58
Praseo­dymium
59
Neo­dymium
60
Prome­thium
61
Sama­rium
62
Europ­ium
63
Gadolin­ium
64
Ter­bium
65
Dyspro­sium
66
Hol­mium
67
Erbium
68
Thulium
69
Ytter­bium
70
Lute­tium
71
1 asterisk
Actin­ium
89
Thor­ium
90
Protac­tinium
91
Ura­nium
92
U
Neptu­nium
93
Pluto­nium
94
Ameri­cium
95
Curium
96
Berkel­ium
97
Califor­nium
98
Einstei­nium
99
Fer­mium
100
Mende­levium
101
Nobel­ium
102
Lawren­cium
103

black=Solid green=Liquid red=Gas grey=Unknown Color of the atomic number shows state of matter (at 0 °C and 1 atm)
Primordial From decay Synthetic Border shows natural occurrence of the element
Background color shows subcategory in the metal–nonmetal range:
Metal Metalloid Nonmetal Unknown
chemical
properties
Alkali metal Alkaline earth metal Lan­thanide Actinide Transition metal Post-​transition metal Polyatomic nonmetal Diatomic nonmetal Noble gas
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Things you can do

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Here are some things you can do:

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Collaboration of the Month

Nuvola apps edu science.png The current Chemistry Article Improvement Drive is Sodium hydroxide.
Every month a different chemistry-related topic, stub or non-existent article may be picked. Please improve the article any way you can.
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