Halogen - Wikipedia
The halogens (/ ˈhælədʒən, ˈheɪ -, - loʊ -, - ˌdʒɛn / [1][2][3]) 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 [4] would exclude tennessine as its chemistry is unknown and i...
Halogen | Elements, Examples, Properties, Uses, & Facts | Britannica
5 days ago · Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts). Learn more about the properties of halogens in this article.
Halogen Elements – List and Facts - Science Notes and Projects
Oct 10, 2020 · Atoms of halogen elements have seven valence electrons in their outer shell. This is one less electron than needed for a full valence shell, so their usual oxidation state is -1. Because of their electron configuration, the halogens are highly reactive.
List of Halogens (Element Groups) - ThoughtCo
Jul 30, 2024 · The halogen elements are located in group 17 or VIIA of the periodic table, which is the second-to-last column of the chart. This is a list of elements that belong to the halogen group and a look at the properties that they share in common.
Halogen Elements and Properties - ThoughtCo
Nov 6, 2019 · It is the only element group that includes elements capable of existing in three of the four main states of matter at room temperature: solid, liquid, and gas. The word halogen means "salt-producing," because halogens react with metals to produce many important salts.
Group 17: General Properties of Halogens - Chemistry LibreTexts
Jun 30, 2023 · Halogens form diatomic molecules (of the form X 2 , where X denotes a halogen atom) in their elemental states. The bonds in these diatomic molecules are non-polar covalent single bonds. However, halogens readily combine with most elements and are never seen uncombined in nature.
4.6: Halogens and Halides - Chemistry LibreTexts
Apr 28, 2024 · The basic properties of halogens are shown in Table \(\PageIndex{6}\) and Table \(\PageIndex{7}\). The electron configuration of each halogen atom is ns 2 np 5, and they lack one electron from the closed-shell structure of a rare gas. Thus a halogen atom emits energy when it gains an electron.
Atomic and Physical Properties of Halogens - Chemistry …
Jun 30, 2023 · Sections below cover the trends in atomic radius, electronegativity, electron affinity, melting and boiling points, and solubility, including a discussion of the bond enthalpies of halogen-halogen and hydrogen-halogen bonds. The figure above shows the increase in atomic radius down the group. The radius of an atom is determined by:
Halogen Characteristics - Sciencing
Apr 1, 2020 · The halogens are chemical elements that constitute Group 17 of the periodic table. The six non-metallic elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (As) and tennessine (Ts).
Periodic Table: Halogen
The halogens are located in group 17 (formally known as group VIIA) on the left of the noble gases on the periodic table. These five toxic, non-metallic elements make up group 17 and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (As).