Periodic Table Part 8: Halogens (F, Cl, Br, I, At, Tn)

The video covers Group 17 elements, known as halogens, including fluorine, chlorine, bromine, iodine, astatine, and tennessine. It discusses their properties, electron configurations, and common oxidation states. The video explains where these elements are found, their extraction methods, and their physical properties. It also covers the formation of interhalogen compounds and oxyacids. The applications of halogens in industries such as photography, bleaching, and pharmaceuticals are highlighted, along with their role in water disinfection and dental health. Astatine and tennessine's limited applications are also mentioned.

Which of the following is a common oxidation state for fluorine?

• +5

• +3

• -1

• +1

Where is fluorine most commonly found?

• In brine wells

• In the atmosphere

• In sea water

• In fluorite ores

Which halogen is a liquid at room temperature?

• Fluorine

• Chlorine

• Bromine

• Iodine

What is a unique property of iodine among the halogens?

• It is a gas at room temperature

• It has multiple allotropes

• It is colorless

• It is a liquid at room temperature

Which compound is used in photographic film?

• Silver bromide

• Potassium iodide

• Teflon

• Sodium hypochlorite

What is the primary use of sodium hypochlorite?

• In photographic film

• As a disinfectant

• In nonstick surfaces

• As a refrigerant

Which halogen is used as a disinfectant in hot tubs?

• Bromine

• Fluorine

• Chlorine

• Iodine