00419nam a22001337a 4500008004100000020001500041050002100056100002900077245007400106260003200180300003100212500001900243600002300262150709b        xxu||||| |||| 00| 0 eng d  a0071577238  aQD 466 .H38 1991  aHeiserman,David L.d1992  aExploring chemical elements and their compounds /cDavid L Heiserman.  aNewyork:bTab books,c1992.  avii,376p. :bIll. ;c25cm.  aInclude index.  2Chemical elements.