That said, even though other halides have multiple electronic states, florine will only have the states of -1 (in any compound) or 0 (in florine gas). 0-1-2 +2. Ex: The oxidation number of F in LiF is -1. Some general rules are used to find the oxidation number of s, p, d, and f-block elements in the periodic table. - 1 + 1 + 1 - 1 Q. Oxidation number of O in the compound H 2 O 2: answer choices . Ken B. Oxidation number of O in its stable elemental form, O 2: answer choices . 30 seconds . F's is -1. 30 seconds . SURVEY . They are positive and negative numbers used for balancing the redox reaction. So, the oxidation number for lithium is +1 because it is a metal that belongs in Group 1, and the oxidation number of magnesium is +2 because it is a metal that belongs in Group 2. So, oxidation state of oxygen will be +1 as calculated. Here are the rules for determining the oxidation number of an atom. 1 decade ago. i.e. Group 1 elements: always have a +1 oxidation number. Monoatomic ions: oxidation number is the same as charge. 11. The oxidation number of F in the compound is -1, P=+5. In an ionic compound. The total cahrge of the molecule must be 0 so if there are two fluorine atoms with an oxidation number of -1 then the oxygen (O) must have an oxidation number of 2+. Fluorine (F) ALWAYS has an -1 oxidation number, since it is so electronegative. Tags: Question 3 . Tags: Question 2 . 0-1-2 +2. Elements: (including all allotropes) have an oxidation number = 0. 0 0. Oxidation Number: The number that is assigned to an element to indicate the loss or gain of electrons by an atom of that element is called as the oxidation number. the oxidation number of each of the. Since the halogens (X 2) have strong electron accepting tendency, therefore they are powerful oxidants.The relative order of oxidising power of halogens is: X 2 : F 2 > Cl 2 > Br 2 > I 2 E 0 : 2.87 V 1.36 1.09V 0.54 V The fact that fluorine is the strongest oxidant can be justified as it can liberate the other halogens from their The Oxidation number of Fluorine in a compound is always -1. Since fluorine is more electronegative than oxygen and oxidation state of fluorine is -1 in all its compounds. SO 4 2-: (+6) + 4(-2) = -2. The more common oxidation numbers are in color.The oxidation number +3 is common to all lanthanides and actinides in their compounds. Q. Oxidation number of O in the compound H 2 O: SURVEY . The oxidation number of diatomic and uncombined elements is zero. The oxidation number of the sulfur atom in the SO 4 2-ion must be +6, for example, because the sum of the oxidation numbers of the atoms in this ion must equal -2. florine is a halide (with the highest electronegativity).