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- Periodic table (7298 bytes)
9: ...nion of Pure and Applied Chemistry]] (IUPAC). The IUPAC scheme was developed to replace both older Roman ...
82: ...nce and properties of a few new elements in the empty cells of his table. Mendeleev was later vindicat...
103: * [[IUPAC]]'s [[systematic element name]]s. - List of elements by symbol (14812 bytes)
1: ==Symbols currently recognized by [[IUPAC]]==
53: <tr><td>Kr</td><td>[[krypton]]</td><td>36</td><td></td></tr>
70: <tr><td>Np</td><td>[[neptunium]]</td><td>93</td><td></td></tr>
80: <tr><td>Pt</td><td>[[platinum]]</td><td>78</td><td></td></tr...
128: ...>93</td><td>Discredited claim to discovery of [[Neptunium]].</td></tr> - Chemistry (12553 bytes)
19: ...nd processes. In particular, the energetic description of diverse chemical transformations are of int...
23: == Fundamental concepts ==
28: ...rding to the [[inorganic nomenclature]] system. [[IUPAC nomenclature]]
61: ...e compounds, [[valence bond theory]] and the concept of [[oxidation number]] can be used to predict mo...
84: ...servation of energy]] leads to the important concepts of [[Chemical equilibrium|equilibrium]], [[therm... - Wilhelm Conrad Roentgen (8624 bytes)
12: ...one time he planned to emigrate. Although he accepted an appointment at Columbia University in New Yo...
20: ...irst notes. In the following weeks he ate and slept in his laboratory as he investigated many propert...
29: ...e rays to be named after him. (On November 2004 [[IUPAC]] named the element [[Roentgenium]] after him as ... - Chemical element (8169 bytes)
15: ...ting names (''e.g.,'' gold, mercury, iron) were kept in most countries, and national differences emerg...
17: ...t be expected to use the IUPAC name. According to IUPAC, the full name of an element is not capitalized, ...
19: ...These are also named by IUPAC, which generally adopts the name chosen by the discoverer. This can lead...
21: ... late twentieth century, the Americans had to accept the international name just when it was becoming ...
27: ...ions in diagrams or procedures; there was no concept of one atoms combining to form molecules. With hi... - Atomic mass (3063 bytes)
9: ...e term '''standard atomic weight''' (as used by [[IUPAC]] at this time) refers to the mean relative atomi... - Bohrium (3577 bytes)
50: ... were to be called; thus [[IUPAC]] adopted unnilseptium (symbol Uns) as a temporary name for this elem...
51: In [[1994]] a committee of IUPAC recommended that element 107 be named bohrium. - Caesium (11026 bytes)
121: | [[electron capture|epsilon]]<br>[[beta emission|beta<sup>-</sup>]...
141: ...ndard temperature and pressure|STP]] are used except where noted.</font>
146: ...]], but ''caesium'' is the spelling used by the [[IUPAC]], although since [[1993]] it has recognized ''ce...
149: ...[[ionization potential]] of all the elements, except for [[francium]]. Caesium is the least abundant o...
175: Exceptionally pure and gas-free caesium can be made by t... - Darmstadtium (3185 bytes)
6: |[[Platinum|Pt]]<br>'''Ds'''<br> <br> <br>...
35: ...Darmstadt). The new name was given to it by the [[IUPAC]] in [[August]] [[2003]].
40: ...//www.iupac.org/news/archives/2003/naming110.html IUPAC: Element 110 is named darmstadtium] - Dubnium (4200 bytes)
49: ...n of Pure and Applied Chemistry]] (IUPAC) thus adopted ''unnilpentium'' (symbol Unp) as a temporary na...
50: ...ever in [[1997]] they resolved the dispute and adopted the current name, ''dubnium'' (symbol Db), afte... - Hassium (3205 bytes)
39: ...name for this element. In [[1994]] a committee of IUPAC recommended that element 108 be named hahnium.
40: The name hassium was adopted internationally, however, in [[1997]]. - Hydrogen (20221 bytes)
104: ...ndard temperature and pressure|STP]] are used except where noted.</font></th>
144: ...uch like the earth revolving around the sun. Except the sun holds earth in orbit with the force of [[...
188: ...onsisting of a single [[proton]]; hence the descriptive, although rarely used, name '''[[protium]]'''.
190: ...erium comprises 0.0184-0.0082% of all hydrogen ([[IUPAC]]); ratios of deuterium to protium are reported r... - Lawrencium (5210 bytes)
43: ...sion]], [[spontaneous fission]] and [[electron capture]] (in order of most to least common types).
45: ...ernational Union of Pure and Applied Chemistry]] (IUPAC) ratified the name lawrencium and symbol Lr durin... - Aluminium (26079 bytes)
42: ...imes;10<sup>5</sup>]][[year|y]] | dm=[[electron capture|ε]] | de=? | pn=26 | ps=[[magnesium|Mg...
55: ... of aluminium exceeds that of any other metal except [[iron]], and it is important in virtually all se...
58: ...ions even though this makes the surface more susceptible to damage.
84: ...sing wounds, and [[alum]] is still used as a [[styptic]]. In [[1761]] [[Guyton de Morveau]] suggested ...
118: ...lly. The world-wide average specific energy consumption is approximately 52.2 to 55.8 MJ/kg Aluminium ... - Meitnerium (3364 bytes)
42: ...ever in [[1997]] they resolved the dispute and adopted the current name. - Niobium (10560 bytes)
46: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4d<sup>4</sup> 5[[s-orbit...
132: | [[electron capture|ε]]
162: ...ndard temperature and pressure|STP]] are used except where noted.</font>
176: *The metal has a low capture cross-section for thermal [[neutron]]s and so ...
187: ...ernment organizations refer to it by the official IUPAC name, many leading metallurgists, metal societies... - Roentgenium (3150 bytes)
35: ...date, the element was known under the temporary [[IUPAC]] [[systematic element name]] ''unununium''. Some... - Rutherfordium (3808 bytes)
53: ...nion of Pure and Applied Chemistry ([[IUPAC]]) adopted Unnilquadium (symbol Unq) as a temporary name f...
54: ...ever in [[1997]] they resolved the dispute and adopted the current name. - Seaborgium (4376 bytes)
35: ...9 and a half-life of 0.48 [[seconds|s]], and in September [[1974]], an [[United States|America]]n rese...
41: ...ontroversy]] erupted and as a result [[IUPAC]] adopted ''unnilhexium'' (symbol Unh) as a temporary nam...
42: ...ed that element 106 be named rutherfordium and adopted a rule that no element can be named after a liv... - Sulfur (18059 bytes)
48: ...lfur forms stable compounds with all elements except the noble gases.
59: ...uction is the major end use for sulfur, and consumption of sulfuric acid has been regarded as one of t...
62: ...ology)|cells]]. [[Disulfide bond]]s between polypeptides are very important in protein assembly and st...
89: ...taining compounds such as ethyl and methyl [[mercaptan]] used to scent natural gas so that leaks are e...
91: ...s. This compound also has unusual electrical and optical properties.
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