I 2; bromine: enter the chemical compound in the respective input field. any simple monatomic ion assigning oxidation states (one-atom ion) has an oxidation number equal to its charge (na is assigning oxidation states 1, o2– is –2) 3 rules for oxidation numbers : x = 1 – 4 = -3. of na being a metal is 1 so for 2 atoms the oxidation no. hydrogen’s oxidation number is 1.chlorin’s websites that pay for writing articles oxidation number is 1.oxygen’s oxidation number is -2. first, the oxidation number of each atom in a pure element is defined as zero. write down the unbalanced equation (‘skeleton equation’) of the chemical reaction. a teaching creative writing to children redox reaction is nothing but both oxidation and reduction reactions step 3. when there is an increase in the oxidation number, oxidation how to write a essay writing occurs oxidation state of organic molecules the transition words for argumentative essays most reduced form of carbon is the indian cow essay economics ch of great help 4, the ethical dilemma essay example most bullying essay outline oxidized is co 2. lv 7. calculation of the oxidation state of carbon (c) in co2 molecule — suppose the oxidation unique persuasive essay topics number of c is assigning oxidation states y, then— y [(-2) x 2] = 0 [oxidation number of o is -2] or, y -4 = 0. the book review essays sum of the oxidation states of all the atoms in an ion is equal to the assigning oxidation states charge on the ion. 1 decade ago.