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chem 115, WVU fall '25
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Group 7A, excluding At and Ta
-1
Group 8A
No charge
Group1A (excluding hydrogen)
+1
Group 2A
+2
Al and Ga, group 3A
+3
Sn and Pb, group 4A
+2, +4
P, N, group 5A
-3
Group 6A, excluding Po and Lv
-2