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halogens

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Also known as halogen, group 17

{| class="floatright" ! colspan=2 style="text-align:left;" | ↓ Period |- ! 2 | |- ! 3 | |- ! 4 | |- ! 5 | |- ! 6 | |- ! 7 | |- | colspan="2"| ---- Legend {| style="text-align:center; border:0;margin: 0 auto" |- | style="border: ; background:; padding:0 2px;" |primordial element |- | style="border: ; background:;" |element from decay |- | style="border:; background:;" | Synthetic |} |}

AI overview

I cannot provide an accurate overview of halogens based on the provided context, as it contains only a table structure with periods and legend information but no substantive information about what halogens are or their significance. To write an accurate overview, I would need to invent facts, which you've asked me not to do.

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Key facts

Periodic table group.title
Halogens
Periodic table group.group number
17
Periodic table group.trivial name
halogens
Periodic table group.by element
fluorine group
Periodic table group.CAS
VIIA
Periodic table group.old IUPAC
VIIB
Periodic table group.mark
F,Cl,Br,I,At,Ts
Periodic table group.left
chalcogens
Periodic table group.right
noble gases

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Research

155,579 papers

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Wikidata facts

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Halogens.jpg
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Commons category
Halogens
short name
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element symbol
X
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~30 min read

Article

28 sections
Contents
  • History
  • Etymology
  • Characteristics
  • Chemical
  • Molecules
  • Diatomic halogen molecules
  • Compounds
  • Hydrogen halides
  • Metal halides
  • Interhalogen compounds
  • Organohalogen compounds
  • Polyhalogenated compounds
  • Reactions
  • Reactions with water
  • Physical and atomic
  • Isotopes
  • Production
  • Applications
  • Disinfectants
  • Lighting
  • Drug components
  • Biological role
  • Toxicity
  • Superhalogen
  • See also
  • Notes
  • References
  • Bibliography

{| class="floatright" ! colspan=2 style="text-align:left;" | ↓ Period |- ! 2 | |- ! 3 | |- ! 4 | |- ! 5 | |- ! 6 | |- ! 7 | |- | colspan="2"| ---- Legend {| style="text-align:center; border:0;margin: 0 auto" |- | style="border: ; background:; padding:0 2px;" |primordial element |- | style="border: ; background:;" |element from decay |- | style="border:; background:;" | Synthetic |} |}

The halogens () are a group in the periodic table consisting of six chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and the radioactive elements astatine (At) and tennessine (Ts), though some authors would exclude tennessine as its chemistry is unknown and is theoretically expected to be more like that of gallium. In the modern IUPAC nomenclature, this group is known as group 17.

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