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Bell Work

Bell Work. Draw the electron dot structure for each of the following: MgF 2 C 2 H 4 O 2. Physical Science – Lecture 42. Naming Compounds. NAMING COMPOUNDS. Just like differing electron dot structures, covalent bonds have a different naming system than ionic bonding:. Ionic Compounds.

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Bell Work

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  1. Bell Work • Draw the electron dot structure for each of the following: • MgF2 • C2H4O2

  2. Physical Science – Lecture 42 Naming Compounds

  3. NAMING COMPOUNDS • Just like differing electron dot structures, covalent bonds have a different naming system than ionic bonding:

  4. Ionic Compounds • Formed from a non-metal and a metal or a cation and an anion. • To create a compound, the charge of the cation and anion must cancel. • The numbers of each will be written as subscripts.

  5. Example – Magnesium Sulfide

  6. Special Considerations • When an ion is made of more than 1 capital letter and more than 1 of the ion is needed in a chemical formula, the entire ion must be put into parenthesis and the subscript is written outside the parenthesis.

  7. Example – Calcium Nitrate

  8. Practice - Ammonia Nitride

  9. Covalent Compounds • Formed from two non-metals. • Prefixes of mono, di, tri, and tetra are translated into numbers of each element.

  10. When Covalently Bonded • When two or more of one element are part of a covalently bonding compound, a prefix is needed to determine how many of each is present since there are no charges for covalently bonded atoms.

  11. Prefixes • Mono – one • Di – two • Tri – Three • Tetra – Four • Penta – Five • Deca - Ten

  12. Proper Endings • When non-metals form compounds, the ending of their name changes to –ide when they are the last element in the compound. • Oxygen = oxide • Nitrogen = nitride • Chlorine = Chloride

  13. Examples • “dioxide” – two oxygens • “trioxide” – three oxygens

  14. Example • Carbon disulfide

  15. Example • Nitrogen monoxide

  16. Example • Dinitrogen oxide

  17. Example - Sulfur dioxide

  18. Example - Carbon monoxide

  19. Practice • Sodium Sulfate

  20. Practice • Nitrogen monoxide

  21. Practice • Lithium hydroxide

  22. Practice • Potassium Phosphate

  23. Practice • Calcium Phosphate

  24. Practice • Aluminum Sulfate

  25. Practice • Beryllium Oxide

  26. Example • Sodium Oxide

  27. Practice • Carbon Tetra-Chloride

  28. Practice • Sulfur tri-oxide

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