3.3 Electron sharing reactions (Radicals)

• Molecular entity with unpaired electron

• Highly reactive

• Recognize radical notation and high reactivity

• Produces radicals

• Halogens with UV light/heat (initiation step)

• Use single-barbed arrows for single-electron movement

• Alkanes + halogens

• Propagation and termination steps

• Mixture of products

• Write initiation, propagation, and termination equations