1 / 4

Oxidation Number

Oxidation Number. Chemistry 2.7. Oxidation Number. Oxidation number ( ON ) describes the ‘degree’ to which an element has been oxidises or reduced. ON are written with the sign before the whole number (e.g. +3 or –1) E.g. For Mg 2+ ON( Mg) = +2 For Cl - ON( Cl ) = -1.

halle
Download Presentation

Oxidation Number

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Oxidation Number Chemistry 2.7

  2. Oxidation Number • Oxidation number (ON) describes the ‘degree’ to which an element has been oxidises or reduced. • ON are written with the sign before the whole number (e.g. +3 or –1) • E.g.ForMg2+ ON(Mg) = +2 For Cl- ON(Cl) = -1

  3. ON and the charge on a polyatomic ion are not the same thing. • E.g. For the permanganate ion, MnO4-, ON(Mn) = +7 ON(O) = -2 How can you work that out? See rules for oxidation numbers (p 59)

  4. Do 5C question 1 on page 60

More Related