1 / 17

Names and Formulas of Ionic Compounds

Names and Formulas of Ionic Compounds. 5.3. Naming Binary Ionic Compounds. Binary Ionic Compound (BIC) -ionic compound made up of two ions To name cation – use name of atom Na + = sodium K + = potassium Ca 2+ = calcium Ba 2+ = barium. Naming Anions.

fatima-little
Télécharger la présentation

Names and Formulas of Ionic Compounds

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. Names and Formulas of Ionic Compounds 5.3

  2. Naming Binary Ionic Compounds • Binary Ionic Compound (BIC) -ionic compound made up of two ions • To name cation – use name of atom • Na+ = sodium K+ = potassium • Ca2+ = calcium Ba2+ = barium

  3. Naming Anions • To name anions, use the atom’s base name and –ide at the end • Cl- = Chloride S2- = Sulfide • P3- = Phosphide O2- = Oxide • KBr = Potassium bromide • Mg3N2 = Magnesium nitride

  4. Writing Ionic Formulas • Write the symbol and charge of each ion side by side (cation first) • If total = 0, just write symbols & you are done! • If total does not = 0, criss cross charges to have overall 0 charge

  5. Examples CaS CsF K3P Rubidium Chloride Barium Sulfide Beryllium Iodide

  6. Multiple Charge Cations/Transition Metals • If cation has multiple charges, use a roman numeral to indicate charge • Cu+ =Copper (I) Cu+2 =Copper (II) • I = 1 II = 2 III = 3 IV = 4 • V = 5 VI= 6 VII = 7 VIII = 8 • IX = 9 X = 10

  7. Determining Charge on Transition Metals • The charge on ionic compounds has to be electrically neutral • Figure out overall charge on anion and then determine what charge cation has to be • CuCl2 ~Each Cl has a charge of -1 (needs 1 e-) and since there are 2 of them, the overall charge of Cl is -2. Cu must be +2 = Copper (II) chloride

  8. Determining Charge on Transition Metals • PbO2 Charge on O is -2 and there are 2 of them so overall on O is -4. • Pb has to be +4 • Lead (IV) oxide

  9. Examples • Magnesium sulfide • Rubidium Oxide • Strontium Bromide • Aluminum Oxide • Vanadium (III) Iodide • Platinum (IV) oxide

  10. Naming • FrF • SrBr2 • CuO • Hg2O • Cu2O • Li2Se

  11. Polyatomic Ions • Polyatomic Ion – an ion made of 2 or more atoms that behave like a single ion • Bonded covalently • Bond ionically with other simple ions as salts

  12. Oxyanions • Name changes as number of O changes • Gain 1 O = perchlorate ClO4- • Base Name = chlorate ClO3- • Lose 1 O = chlorite ClO2- • Lose 2 O = hypochloriteClO-

  13. Hydrogen and Sulfur • The name usually starts with the word hydrogen, but use mono- and di- • HPO4 –monohydrogen phosphate • H2PO4 – dihydrogen phosphate • Thio – replace O with S • K2S2O3 – Potassium thiosulfate

  14. Naming Compounds w/polyatomics • Name the ion that is not a polyatomic like simple cations or anions and then name the polyatomic as the chart says • NaOH = Sodium hydroxide • CaCO3 = Calcium carbonate

  15. Polyatomic Ions AlPO3 LiSCN FeSO4 Mn(Cr2O7)2

  16. Formula Writing w/polyatomics • Determine charge of overall polyatomic and then the other ion. • Follow same rules as before. • Beryllium cyanide • Copper (II) nitrate

  17. Polyatomic Ions Barium sulfide Potassium oxalate Chromium (III) cyanide Vanadium (V)silicate

More Related