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Vocabulary Entry
halogen
|noun • adjective
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N
noun
A group of chemical elements that consists of the nonmetals fluorine, chlorine, bromine, iodine, and astatine.
Example Sentences
"Chlorine is a common halogen used in swimming pools to sanitize the water."
"The group of halogens is known for their reactivity with alkali metals."
"Iodine, a halogen, is often used as an antiseptic."
A
adjective
Related to or characteristic of the halogen group of elements.
Example Sentences
"Halogen lamps are known for their bright light output."
"The halogen element reactions can produce harmful gases if not handled properly."
"In the periodic table, halogen elements are found in Group 17."