Name:_____________________ Per:______ Writing Formulas & Naming NOTES: Type I Type II Who’s 2 non-metals Metal + non-metal Bonding? N2O3 CaCl2 Example Dinitrogen Calcium chloride trioxide Rule: name Prefix (except if Full Name 1st element only 1) + full name Prefix + -ide Rule: name -ide ending* ending 2nd element (*unless polyatomic ion) 1: mono- & Drop”! “Swap 2: di- -Write Ion charges Special situations: 3: tri- 4: tetra -Swap & drop the numbers Transition metals 5: penta (use roman numerals) 6: hexa- -Write as a formula: Ex: CuBr2 Copper (II) Bromide 7:hepta- Special rules Ca Cl2 for this type? 8: octa- Polyatomic Ions 9:nona- (name according to P. Table) 10: deca- Ca(NO3)2 Calcium Nitrate EX: Part I – Covalent Compounds (2 non-metals) Name Formula Formula Name 1. phosphorus trichloride 9. CO2 2. phosphorus pentachloride 10. CO 3. sulfur dioxide 11. NH3 4. sulfur hexachloride 12. SO3 5. silicon dioxide 13. P2Cl5 6. carbon tetrachloride 14. NO 7. dinitrogen monoxide 15. N2O3 8. nitrogen dioxide 16. Cl2
Name:_____________________ Per:______ Writing Formulas & Naming NOTES: Type I Type II Who’s Bonding? 2 non-metals Metal + non-metal Example N2O3 Dinitrogen trioxide CaCl2 Calcium chloride Rule: name 1st element Prefix (except if only 1) + full name Full Name Rule: name 2nd element Prefix + -ide ending -ide ending* (*unless polyatomic ion) Special rules for this type? 1: mono- 2: di- 3: tri- 4: tetra 5: penta 6: hexa- 7:hepta- 8: octa- 9:nona- 10: deca- “Swap & Drop”! -Write Ion charges -Swap & drop the numbers -Write as a formula: Ca Cl2 Special situations: Transition metals (use roman numerals) Ex: CuBr2 Copper (II) Bromide Polyatomic Ions (name according to P. Table) EX: Ca(NO3)2 Calcium Nitrate Part I – Covalent Compounds (2 non-metals) Name Formula Formula Name 1. phosphorus trichloride 9. CO2 2. phosphorus pentachloride 10. CO 3. sulfur dioxide 11. NH3 4. sulfur hexachloride 12. SO3 5. silicon dioxide 13. P2Cl5 6. carbon tetrachloride 14. NO 7. dinitrogen monoxide 15. N2O3 8. nitrogen dioxide 16. Cl2
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