This document provides information on naming inorganic compounds, including: - Cations are named after the metal, and transition metals include the charge in Roman numerals. - Anions ending in "-ide" are named by replacing the ending with "-ide". Others ending in "-ate" or "-ite" indicate the number of oxygen atoms. - Ionic compounds are named by combining the cation and anion names. - Acids are named by adding prefixes like "hydro-" or suffixes like "-ic" or "-ous" depending on the anion.

1. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License Inorganic Compounds- nomenclature University of Lincoln presentation

2. INORGANIC COMPOUNDS Compounds composed of elements other than carbon. Associated with the nonliving portion of the world This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

3. NAMING IONIC COMPOUNDS CATIONS ( POSITIVE IONS) A. Cations formed from metal atoms have the same name as the metal. Na + sodium ion Zn 2+ zinc ion Al 3+ aluminum ion This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

4. Naming Ionic compounds with Transition metals B. If a metal can form cations of different charges, the positive charge is given by a Roman numeral in parenthesis following the name of the metal. Fe 2+ iron (II) ion Cu + copper (I) ion Fe 3+ iron (III) ion Cu 2+ copper (II) ion This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

5. Naming Ionic compounds (classic name) Apply –ous or –ic The endings represent the lower and higher charged ions, respectively. Fe 2+ ferrous ion Cu + cuprous ion Fe 3+ ferric ion Cu 2+ cupric ion This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

6. IONIC CHARGES OF REPRESENTATIVE ELEMENTS This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License 1A 2A 3A 4A 5A 6A 7A 0 Li + Be 2+ N 3- O 2- F - Na + Mg 2+ Al +3 P 3- S 2- Cl - K + Ca 2+ As 3- Se 2- Br - Rb + Sr 2+ I - Cs + Ba 2+

7. FORMULAS AND NAMES OF COMMON METAL IONS WITH MORE THAN ONE IONIC CHARGE This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License FORMULA STOCK NAME CLASSICAL NAME Cu + Copper (I) ion Cuprous ion Cu 2+ Copper (II) ion Cupric ion Fe 2+ Iron (II) ion Ferrous ion Fe 3+ Iron (III) ion Ferric ion Hg 2+ Mercury (I) ion Mercurous ion Hg 2 + Mercury (II) ion Mercuric ion Pb 2+ Lead (II) ion Plumbous ion Pb 4+ Lead (IV) ion Plumbic ion Sn 2+ Tin (II) ion Stannous ion Sn 4+ Tin (IV) ion Stannic ion Cr 2+ Chromium (II) ion Chromous ion Cr 3+ Chromium (III) ion Chromic ion Mn 2+ Manganese (II) ion Manganous ion Mn 3+ Manganese (III) ion Manganic ion Co 2+ Co 3+ Cobalt (II) ion Cobalt (III) ion Cobaltous ion Cobaltic ion

8. EXERCISES: Name each of the following: Sn 2+ Sn 4+ K + Ba 2+ Co 2+ Co 3+ This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

9. Continue: Fe 2+ Fe 3+ Al +3 Sr 2+ Cr 2+ Cr 3+ This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

10. 2. ANIONS (NEGATIVE IONS) A. Monoatomic (one-atom) anions have names formed by replacing the ending of the name of the element with –ide H - O 2- N 3- OH - Hydride ion Oxide ion Nitride ion Hydroxide ion This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

11. B. Polyatomic anions containing oxygen have names ending in –ate or –ite These are called oxyanions NO 3 - nitrate ion SO 4 2- sulfate ion NO 2 - nitrite ion SO 3 2- sulfite ion CO 3 2- carbonate ion HCO 3 - hydrogen carbonate ion PO 4 3- phosphate ion This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

12. ClO 4 - perchlorate ion (one more O atom than chlorate) ClO 3 - chlorate ion ClO 2 - chlorite ion (one less O atom than chlorate) ClO - hypochlorite ion (one less O atom than chlorite) This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

13. COMMON POLYATOMIC IONS This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License 3- charge PO 3 3- Phosphite PO 4 3- Phosphate 1+ charge NH 4 + Ammonium 1- charge H 2 PO 4 - Dihydrogen phosphate C 2 H 3 O 2 - Acetate HSO 3 - Hydrogen sulfite HSO 4 - Hydrogen sulfate HCO 3 - Hydrogen carbonate NO 2 - Nitrite NO 3 - Nitrate CN- Cyanide OH- Hydroxide MnO 4 - Permanganate ClO- Hypochlorite ClO 2 - Chlorite ClO 3 - Chlorate ClO 4 - Perchlorate 2- charge HPO 4 2- Hydrogen phosphate C 2 O 4 2- Oxalate SO 3 2- Sulfite SO 4 2- Sulfate CO 3 2- Carbonate CrO 4 2- Chromate Cr 2 O 7 2- Dichromate SiO 3 2- Silicate

14. 3. IONIC COMPOUNDS Names of ionic compounds consist of the cation name followed by the anion name CaCl 2 calcium chloride Al(NO 3 ) 3 aluminum nitrate Cu(ClO 4 ) 2 copper (II)perchlorate cupric perchlorate This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

15. Name the following compounds: CuS K 3 N SnCl 2 K 2 S CaI 2 NaI This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

16. Answers CuS Copper (II) sulfide K 3 N Potassium Nitride SnCl 2 Tin (II) chloride K 2 S Potassium sulfide CaI 2 Calcium Iodide NaI Sodium Iodide This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

17. Name the following: MgCl 2 SnCl 4 HgBr 2 PbS 2 FeO Write the formula for each of the following: Magnesium bromide Aluminum oxide Ferrous bromide Lead (II) sulfide Stannic oxide This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

18. HOMEWORK: Name the following: CoI 2 Cs 2 O ZnS KCI BaO CuBr 2 This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

19. NAMES OF FORMULAS OF ACIDS An acid is a substance whose molecules yield hydrogen ions (H + ) when dissolved in water. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

20. Acid based on anions whose names end in –ide. Anions whose names end in –ide have he asociated acids that have the hydro- prefix and an –ic ending ANION CORRESPONDING ACIDS Cl - (chloride) HCl (hydrochloric acid) S 2- (sulfide) H 2 S (hydrosulfuric acid) This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

21. 2. Anions whose names end in –ate have associated acids with an –ic ending, whereas anions whose names end in –ite have acids with an -ous ending. Prefixes in the name of the anion are retained in the name of the acid. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

22. ANION CORRESPONDING ACID ClO 4 - perchlorate H ClO 4 – perchloric acid ClO 3 - chlorate HClO 3 – chloric acid ClO 2 - chlorite H ClO 2 – chlorous acid ClO - hypochlorite H ClO – hypochloric acid This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

23. EXERCISES: Give the name or formula for the following: H 2 SO 4 H 2 CO 3 Nitric acid Phosphoric acid This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License

24. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales License Acknowledgements JISC HEA Centre for Educational Research and Development School of natural and applied sciences School of Journalism SirenFM http://tango.freedesktop.org