IPA: //ælˈkiːn//
KK: /ælˈkiːn/
A type of chemical compound that consists of carbon and hydrogen atoms, characterized by having at least one double bond between carbon atoms. These compounds are part of a larger group of hydrocarbons and are known for being unsaturated.
Ethylene is the simplest alkene, consisting of two carbon atoms connected by a double bond.
Alkene → It is formed from "alkyl" (from Arabic *al-kuḥl*, meaning the kohl or black powder, referring to a class of hydrocarbons) and "-ene" (from Greek *ene*, meaning containing). The word "alkene" refers to a class of hydrocarbons that contain a carbon-carbon double bond.
Think of 'alkyl' referring to a type of hydrocarbon and '-ene' indicating the presence of a double bond, which helps you remember that alkenes are hydrocarbons with double bonds.