Pierre Abbat scripsit: > Why do sodna, kliru, and navni have an x2 place, but not the other elements? Because they really mean "alkali metal", "halogen", and "noble gas" respectively. Sodium, chlorine, and neon are just the prototypes. -- John Cowan cowan@ccil.org One art/there is/no less/no more/All things/to do/with sparks/galore --Douglas Hofstadter