show more If you were asked to describe metals and magnetism you could say. nonâpaired electrons spin in opposite directions in all metals, creating a magnetic field. metals are magnets because they have more electrons than nonâmagnetic materials. metals can become magnetic if they have many spinning electrons... show more If you were asked to describe metals and magnetism you could say. nonâpaired electrons spin in opposite directions in all metals, creating a magnetic field.
Not to be confused with Argonne (disambiguation). Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in the Earth's atmosphere, at 0.934% (9340 ppmv).
Argon is an inert, colorless and odorless element â one of the Noble gases. Used in fluorescent lights and in welding, this element gets its name from the Greek word for lazy, an homage to how little it reacts to form compounds. On Earth, the vast majority of argon is the isotope argon-40, which arises from the radioactive decay of potassium-40, according to Chemicool. But in space, argon is made in stars, when a two hydrogen nuclei, or alpha-particles, fuse with silicon-32. The result is the isotope argon-36.