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- Periodic table (7298 bytes)
53: ...he next-to-last group in the chart (the [[halogen|halogens]]) are [[fluorine]] (F) and [[bromine]] (Br).
59: ...nal table was created without a knowledge of the inner structure of [[atom]]s: if one orders the eleme...
60: ...e these regularities was the German chemist [[Johann Wolfgang D?einer]] who, in 1829, noticed a number...
84: In the 1940s [[Glenn T. Seaborg]] identified the [[transuranium elemen... - Chemical element (8169 bytes)
1: ...alled simply '''element''', is a substance that cannot be divided or changed into different substances...
17: ...d those which do not use the [[Latin alphabet]] cannot be expected to use the IUPAC name. According to...
37: ... example, an "X" is used to indicate any of the [[halogen]] elements, while "R" is used for a radical, mean... - Chemical series (2075 bytes)
26: |style="background:#FFFF99;"| [[Halogen]]s || (periodic table group 17) - Antimony (9093 bytes)
131: ...tacked by [[oxidation|oxidizing]] [[acid]]s and [[halogen]]s. Antimony and some of its alloys expand on coo...
148: ... [[1450]], and was known to be a metal by the beginning of the [[17th century]]. The origin of the na... - Astatine (5377 bytes)
21: | [[Halogen]]s
106: ...nd [[thorium]] decay and is the heaviest of the [[halogen]]s.
109: ...rometer]]s to behave chemically much like other [[halogen]]s, especially [[iodine]] (it probably accumulate... - Bromine (8073 bytes)
19: | [[halogen]]s
140: ...the symbol '''Br''' and [[atomic number]] 35. A [[halogen]] element, bromine is a red volatile liquid at ro...
143: ...agreeable odor resembling that of [[chlorine]]. A halogen, bromine resembles chlorine chemically but is les... - Chlorine (10751 bytes)
2: {{Elementbox_series | [[halogen]]s }}
39: ...atomic number]] 17 and symbol '''Cl'''. It is a [[halogen]], found in the [[periodic table]] in [[periodic ...
44: This element is a member of the [[salt]]-forming halogen series and is extracted from chlorides through [[... - Fluorine (8588 bytes)
2: {{Elementbox_series | [[halogen]]s }}
34: ...ale [[yellow]]-[[green]], [[univalent]] gaseous [[halogen]] that is the most chemically reactive and [[elec...
50: ...rigeration]]. [[Chlorofluorocarbon]]s have been banned for these applications because they are suspect... - Gold (24329 bytes)
160: ...r use in [[coin]]s and [[jewelry]]; conversely, [[halogen]]s will chemically alter gold, and [[aqua regia]]...
170: ...cal connectors to ensure a good, low-resistance connection.
177: ...ing biological material to be viewed under a [[scanning electron microscope]].
178: ... [[Nobel Prize]], award a gold [[medal]] to the winner (with [[silver]] to the second-place finisher, ...
186: ...cribe gold, whose king [[Tushratta]] of the [[Mitanni]] claimed was as "common as dust" in Egypt. Egyp... - Hafnium (9162 bytes)
162: ...l is resistant to concentrated [[alkali]]s, but [[halogen]]s react with it to form hafnium tetrahalides. At... - Iodine (11416 bytes)
20: | [[halogen]]s
139: ...halogen]]s, and the most electropositive metallic halogen. Iodine is primarily used in [[medicine]], [[phot...
142: ...blue-violet gas that has an irritating odor. This halogen also forms compounds with many elements, but is l...
149: *One of the [[halogen]]s, it is an essential [[trace element]]; the [[t...
162: ...nstitute of France. On [[December 6]] Gay-Lussac announced that the new substance was either an elemen... - Lanthanum (10184 bytes)
102: ...silicon]], [[phosphorus]], [[sulfur]], and with [[halogen]]s. It oxidizes rapidly when exposed to air. Cold... - Platinum (10600 bytes)
166: ...emperature but can be corroded by [[cyanide]]s, [[halogen]]s, [[sulfur]], and caustic [[alkali]]s. This met... - Ruthenium (10241 bytes)
158: ...is, is not attacked by acids but is attacked by [[halogen]]s at high temperatures and by hydroxides. Small...
177: ...Berzelius did not find any unusual metals, but Osann thought he found three new metals and named one o... - Silicon (13233 bytes)
47: ...tively inert element, silicon still reacts with [[halogen]]s and dilute [[alkali]]s, but most [[acid]]s (ex... - Silver (15157 bytes)
145: ...se of silver is as a [[precious metal]] and its [[halogen|halide]] salts, especially [[silver nitrate]], ar...
164: ...eparated from [[lead]] as early as the [[4th millennium BC]].
183: ...(2492 [[metric ton]]s) in 2000, about 15% of the annual production of the world. - Titanium (20884 bytes)
122: ...ith [[chlorine]]. It also reacts with the other [[halogen]]s and absorbs [[hydrogen]]. - Ununseptium (2081 bytes)
17: |[[Chemical series]]||Presumably [[Halogen]]s - History of the periodic table (7005 bytes)
1: ==In the beginning==
8: [[Hennig Brand]] was the first person to discover a new ...
13: In 1817, [[Johann Wolfgang D?einer|Johann D?einer]] noticed that [[strontium]] had similar ...
16: From this law, D?einer went on to discover the [[halogen]] triad composed of [[chlorine]], [[bromine]], an...
18: .... During this time, [[fluorine]] was added to the halogen group and [[oxygen]], [[sulfur]], [[selenium]], a... - Solvent (12764 bytes)
3: ...ng]] (e.g.[[tetrachloroethylene]]), as [[paint thinner]]s (e.g. [[toluene]], [[turpentine]]), as nail ...
20: ...ds between solvents and water in a [[separatory funnel]] during chemical syntheses.
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