Naming Negative charge

Step 1 Identify the cation and the anion (see Table D.l or Appendix 3A, if necessary). To determine the oxidation number of the cation, decide what cation charge is required to cancel the total negative charge of the anions. Step 2 Name the cation. If the metal can have more than one oxidation number (most transition metals and some metals in Groups 12 through 15/V), give its charge as a Roman numeral. 

If the complex has an overall negative charge (an anionic complex), the suffix -ate is added to the stem of the metal s name. If the symbol of the metal originates from a Latin name (as listed in Appendix 2D), then the Latin stem is used. For example, the symbol for iron is Fe, from the Latin ferrum. Therefore, any anionic complex of iron ends with -ferrate followed by the oxidation number of the metal in Roman numerals ... 

However, since the fluorine atom contains 9 protons in its nucleus and now contains 10 electrons outside the nucleus, it has a net negative charge it is an ion. The ion is designated F and named the fluoride ion. 

V) with a reactive methylene group at C6. According to modern concepts, the phenolic hydroxyl group is believed to activate the positions ortho and para to it. In the case of kojic acid, of the three positions in question, only the one ortho position, namely at C6, is available for substitution. This activating effect of the phenolic function would be particularly marked in alkaline media, where kojic acid probably exists in the form of a phenoxide ion (LXIII) the negative charge would be shared by C6 (LXIV), where it... 

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