origin of family name

translated for german noun edelgas, frist used in 1898 by hugo erdmann 

lights

The noble gases make a group of chemical elements with similar properties. they are all odorless, colorless, The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn) 

bohr model