-3, +3, +5 are most common
-3 is most common, but maximum will be +5
You are asking about group 12. Generally they shows 14 as the oxidation number.
Nitrogen has an oxidation number of -3. Since it is in group 15, it has 5 valence electrons. It wants to have eight, so it will gain three electrons. Electrons are negative, that's why the oxidation number is negative.
Hydrogen has -1 and +1 oxidation numbers. Other elements have +1 only
Group 1 elements have +1 oxidation number (except for hydrogen) All group 2 elements have +2 oxidation number Fluoride ion always has -1
-3 is most common, but maximum will be +5
You are asking about group 12. Generally they shows 14 as the oxidation number.
Nitrogen has an oxidation number of -3. Since it is in group 15, it has 5 valence electrons. It wants to have eight, so it will gain three electrons. Electrons are negative, that's why the oxidation number is negative.
Hydrogen has -1 and +1 oxidation numbers. Other elements have +1 only
Group 1 elements have +1 oxidation number (except for hydrogen) All group 2 elements have +2 oxidation number Fluoride ion always has -1
milk
+2 for group 2 elements
Group 18 or noble gases
Magnesium is in the group 2. 0 is the lowest oxidation number for it.
Noble gas have 0 Oxidation number. That's because they do not form ions.
0- any element by itself has an oxidation number of 0.
The rules for using group number to predict oxidation state are that the element must be ionized and a number line must be used.