1 / 4

Writing Ionic Formulas

Writing Ionic Formulas. Criss-Cross Method. Mg +2 and Cl -1. Crisscross and Drop. Mg 1 Cl 2 but if subscript is 1, forget it!. MgCl 2 means 1 Mg +2 and 2 Cl -1. NOTE: The formula has to be in the simplest whole number ratio (this is called the empirical formular. Be 2 O 2 = BeO

griffin-mayer
Download Presentation

Writing Ionic Formulas

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. Writing Ionic Formulas

  2. Criss-Cross Method Mg+2 and Cl-1 Crisscross and Drop Mg1Cl2 but if subscript is 1, forget it! MgCl2 means 1 Mg+2 and 2 Cl-1

  3. NOTE: The formula has to be in the simplest whole number ratio (this is called the empirical formular Be2O2 = BeO Al3N3 = AlN

  4. Try a few formulas: CaCl2 • Ca+2 + Cl-1 • Na+1 + O-2 • Cs+1 + S-2 • Al+3 + Cl-1 • Al+3 + Se-2 • Mg+2 + F-1 • Ca+2 + S-2 Na2O Cs2S AlCl3 Al2Se3 MgF2 CaS

More Related