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Element charge of Hydrogen column (column 1)
+1
Element charge of Beryllium column (column 2)
+2
Element charge of Boron column (column 13)
+3
Element charge of Carbon column (column 14)
+4
Element charge of Nitrogen column (column 15)
-3
Element charge of Oxygen column (column 16)
-2
Element charge of Fluorine column (column 17)
-1
Element charge of Helium column (column 18)
0; having an element charge of 0 is why this column is known as the noble gases