+3 in its compounds
The most common are 0 and 3+.
The most common oxidation number of magnesium is +2.
the most common oxidation number for oxygen is -2.
+4 is the most common and the most stable oxidation number
-1 is most common in chlorides. However chlorine can exhibit oxidation numbers up to +7 in its compounds.
Zinc will be 2+ in most cases.
+1 is most common
+4 is most common
The most common oxidation number is +II. The charge and number for cobalt is +2.
+3 is the most common
The oxidation number of uranium can vary, depending on the compound it is in. In its most common form, uranium has an oxidation number of +6.
The most common oxidation number for nickel is +2. Nickel is a transition metal that can also exhibit oxidation states of +1, +3, and +4, but the +2 oxidation state is the most stable and commonly observed.