Halogen

Group of nonmetal elements with seven electrons in their outermost shell.

Group 17 elements

Halogens are a group of nonmetal elements that form strongly acidic, corrosive hydrogen halides. They react readily with metals and have seven electrons in their outermost shell.

Pronunciation

/ˈhæl.ə.dʒən/

Etymology

The name 'halogen' comes from Greek words meaning 'salt-forming'.

Explain Like I’m 5

Halogens are a group of nonmetal elements that really like to react with other elements because they're just one electron short of having a full outer shell.

Fun Facts

The word 'halogen' means 'salt former', as they react with metals to form salts
,Fluorine is the most reactive element on the periodic table
,Iodine has antiseptic properties and was historically used to treat wounds

FAQ

What are halogens? They are a group of nonmetal elements
,Why are they reactive? They have seven electrons in their outermost shell
,What are some examples of halogens? Fluorine, chlorine, and iodine are common examples

Hypernyms — Broader Categories

chemical element nonmetal

Hyponyms — Specific Examples

fluorine chlorine bromine iodine astatine tennessine

Holonyms — Wholes or Groups

periodic table

Indexes

chemical element group

Built by Tim Jones