non-metals![click to hear](/images/speaker.jpg)
Nonmetallic elements that are lusterless and nonmalleable; they are mostly gases and solids and are usually poor conductors of heat and electricity.
astatine ![click to hear](/images/speaker.jpg)
Radioactive element that is extremely rare in nature; it is used in medicine to study the thyroid gland and to detect cancerous tumors.
iodine ![click to hear](/images/speaker.jpg)
Solid that is used especially in pharmaceuticals (revulsives, antiseptics), in photography and dyes; it is also essential for the human body.
bromine ![click to hear](/images/speaker.jpg)
Very toxic liquid that is used mainly to manufacture teargas, dyes and disinfectants and in photography and medications.
phosphorus ![click to hear](/images/speaker.jpg)
Solid used especially in fertilizer (phosphates), matches and pyrotechnics (fireworks); it is also necessary for human beings.
sulfur ![click to hear](/images/speaker.jpg)
Solid that is quite common in nature; it is used in car batteries, fertilizer, paint, explosives, pharmaceuticals and rubber.
chlorine ![click to hear](/images/speaker.jpg)
Abundant toxic gas that is used to whiten fabric and paper, disinfect water and manufacture various other products (solvents).
fluorine ![click to hear](/images/speaker.jpg)
Gas that is used especially for enriching uranium and manufacturing antistick coatings; it is present in bones and teeth.
oxygen ![click to hear](/images/speaker.jpg)
Gas that is the most abundant element on Earth and that comprises about 20% of the atmospheric air; it is used to breathe and in the manufacture of steel.
nitrogen ![click to hear](/images/speaker.jpg)
Gas that constitutes about 78% of the Earth’s atmosphere, present in all animal and vegetable tissue (proteins), and in fertilizer, ammonia and explosives.
carbon ![click to hear](/images/speaker.jpg)
Element common in its pure state (diamond, graphite) or found in combination (air, coal, petroleum); it is present in animal and plant tissue.