On the periodic table, argon belongs to group 18, which is the noble gas group or family. Argon is an inert gas that has the atomic number of 18 and a melting point of -308.83 degrees Fahrenheit. Its chemical symbol is Ar.Continue Reading
Sir William Ramsay and Lord Rayleigh were the two chemists who discovered this element in 1894. Argon, which is a colorless and odorless gas, is present in small amounts in the atmosphere. Through the process of fractional distillation, Ramsay and Rayleigh isolated argon from liquid air.
Because argon is inert, it's used as an inert gas shield for welding, as well as in incandescent light bulbs, lasers and glow tubes. Argon lasers and argon-dye lasers are important in the medical field for use in eye surgeries and for the treatment of certain skin conditions.Learn more about Atoms & Molecules
Arsenic belongs to group 15, which is called the nitrogen family. This family of elements also includes nitrogen, phosphorus, antimony and bismuth. All elements in this family have the same electron configuration in their outermost shell (ns2np3).Full Answer >
Chlorine is a member of the halogen family, also known as group 17. This group contains chlorine, bromine, fluorine, iodine and astatine. The halogen family is characterized in part by its tendency to form acids when bonded to hydrogen.Full Answer >
On the periodic table, sulfur belongs to group 16, which is the chalcogen group or the oxygen family. This family contains oxygen, sulfur, selenium, tellurium and polonium. All elements in this family have similar characteristics; each element contains six electrons in its outermost shell.Full Answer >
The element nitrogen belongs to the nitrogen family, which is situated in the p-block in group 15 on the periodic table of elements. The elements arsenic, bismuth, antimony and phosphorus also belong to the same group because they share the same electron configuration and follow the general periodic trends.Full Answer >