Trends in the Periodic Table Reading:Gray:(2-2)to (2-4)and(2-9) 0GC:(3.1),(3.3),(3.4)and(5.2)to(5.5) IV-1Trends in the Periodic Table Reading: Gray: (2-2) to (2-4) and (2-9) OGC: (3.1), (3.3), (3.4) and (5.2) to (5.5) IV-1