1 / 16

Ionic Reminder

Ionic Reminder. Cation : A positive ion Mg 2+ NH 4 + Anion: A negative ion Cl - SO 4 2 -. Define : Polyatomic Ion - a n ion made up of two or more elements covalently bonded. Polyatomic Ions . Naming Ionic Compounds. cation = name of the element Ca 2+ = calcium ion

tynice
Télécharger la présentation

Ionic Reminder

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. Ionic Reminder • Cation: A positive ion • Mg2+ NH4+ • Anion: A negative ion • Cl- SO42- Define: Polyatomic Ion- an ion made up of two or more elements covalently bonded.

  2. Polyatomic Ions

  3. Naming Ionic Compounds • cation= name of the element • Ca2+ = calcium ion • anion=root + -ide • Cl-=chloride ion • CaCl2 = calcium chloride

  4. Naming Ionic Compounds(continued) • Many transition metals can form more than one cation • Use a Roman numeral to show the charge • I= 1 • II = 2 • III = 3 • IV = 4 • V= 5

  5. Metals with Varying charges

  6. Example: CuCl2 (Cu = Copper… can be eitherCu+1orCu+2) • CuCl2 = Copper(II) chloride • CuCl = Copper(I) chloride

  7. Writing Ionic Compound Formulas Example: Aluminum sulfide 1. Find the charges for the cation & anion 2. Check to see if charges are balanced. 3. Balance charges Al3+ S2- Al2S3 2 3 Not balanced!

  8. Writing Ionic Compound Formulas Example: Iron(III) Chloride 1. Find the charges for the cation & anion 2. Check to see if charges are balanced. 3. Balance charges Fe3+ Cl- 3 FeCl3 Not balanced!

  9. Writing Ionic Compound Formulas Example: Magnesium carbonate 1. Find the charges for the cation & anion 2. Check to see if charges are balanced. Mg2+ CO32- MgCO3 They are balanced!

  10. Writing Ionic Compound Formulas Example: Barium Nitrate 1. Find the charges for the cation & anion 2. Check to see if charges are balanced. 3. Balance charges Ba2+ ( ) NO3- 2 Ba(NO3)2 Not balanced!

  11. Writing Ionic Compound Formulas Example: Zinc Hydroxide 1. Find the charges for the cation & anion 2. Check to see if charges are balanced. 3. Balance charges ( ) Zn2+ OH- Zn(OH)2 2 Not balanced!

  12. Naming Covalent Compounds • Name the least electronegative element first • If there is only one atom, DO NOT use the prefix “mono”. • If there is more than one, DO use a prefix. • Name the more electronegative element next. • Use a prefix EVERYTIME on the second element!

  13. List of Prefixes(For Covalent Compounds only!) • 1 = mono • 2 = di • 3 = tri • 4 = tetra • 5 = penta • 6 = hexa • 7 = hepta • 8 = octa • 9 = nona • 10 = deka

  14. Naming Covalent Compounds P2O5= diphosphoruspentoxide CO2 = carbon dioxide CO = carbon monoxide N2O = dinitrogenmonoxide

More Related