terminology - Difference between oxidation and formal charge ...
2016年3月20日 · The formal charge rarely has any non-formal meaning except in ammonium derivatives where it denotes the actual centre of positive charge. The oxidation states corresponds to the actually observed electron density in an atom somewhat. Both however are formal concepts and you need to know how to cope with them to use them to your advantage.
Oxidation number vs charge? - Chemistry Stack Exchange
2016年12月5日 · If an atom loses electrons, it develops a positive charge and becomes a cation. Likewise, if an atoms gains electrons, it develops a negative charge and becomes an anion. "Charges only EXIST on IONS." Covalent bonding rose the oxidation number. We are aware that in a Covalent Bond sharing of electron takes place.
formal charge vs oxidation number | Student Doctor Network
2009年5月29日 · Formal charge: The theoretical charge on an atom in a molecule, calculated by V-1/2B-L, where V is the number of valence electrons, B is the number of bonding electrons, and L is the number of lone pairs Oxidation number:A fictitious system of measuring electron density and distribution. It is the hypothetical charge that would be present on ...
Oxidation number, Oxidation state, Formal charge
2005年4月4日 · oxidation state refers to bonds to more or less electronegative atoms. take the central atom, and for each bond to a more e-negative atom, assign a +1, and for each bond to a less e-negative atom, assign a -1. a bond to an atom w/ the same e-negativity (aka same element), assign a 0 (in C(CH3)3, the central carbon has an oxidation state of 0 b/c all four of …
Why are electrons shared equally when calculating formal charge, …
When calculating formal charge - electrons are shared equally between the atoms in the bond. When calculating oxidation state - electrons are both given to the most electronegative atom. Why is this different? I am assuming it is something to do with the intended use of calculating formal charge and oxidation state, which I believe are:
How to calculate formal charge? - Chemistry Stack Exchange
2019年1月15日 · The two carbon atoms would both have full octets and zero formal charge, but one has an oxidation number of -4 and the other has an oxidation number of +3. In this case, if you needed to predict where a reducing agent would react with this compound, you would be able to choose one carbon atom over the other.
Oxidation States vs. Formal Charges | Student Doctor Network
2011年10月12日 · In my classes I learned formal charge, but the DAT seems to care about the oxidation state only. As anyone every gotten a formal charge question on their DAT? I didn't in my review material.
question on oxidation number | Student Doctor Network
2008年5月14日 · Therefore, when you multiply by the 4, the total for oxygen is -8. Each H supplies an oxidation number of +1, so the total for hydrogen is +4. This means that the total oxidation number of the (OH)4 is -4. If you look at the Na+, it has an oxidation number of 1+. There is no charge on the molecule, so the oxidation numbers HAVE to add to zero.
How to calculate the formal charge of sulfate ion?
2013年4月27日 · Formal charge only equals actual charge on monoatomic species. Formal charge falls into the category of models that we use in chemistry that are 1) helpful, 2) produce the correct answer when used correctly, and 3) completely bogus. Other models in this category include oxidation number, VSEPR, resonance, and electronegativity.
What does "formal" mean (e.g. in formal charge)?
2024年8月31日 · Oxidation number: The charge remaining on an atom when all ligands are removed heterolytically in their closed form, with the electrons being transferred to the more electronegative partner; homonuclear bonds do not contribute to the oxidation number. Formal charge: The charge remaining on an atom when all ligands are removed homolytically.