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Honors Chemical Bonding Review Name: _____________________ Complete the following sentences using the correct vocabulary words from the word bank. (You will not use every word) Word Bank Oxidation number Covalent bond Ionic bond Polyatomic ion Ion Hydrate Subscripts Superscripts Polar Stable Chemical formula Nonpolar 1. An atom that has gained or lost electrons is called a(n) ________________________. 2. An atom is __________________________________ when its outer energy level is filled with electrons. 3. A(n) ____________________________________ tells what elements make up a compound and the ratios of the atoms of those elements. 4. A bond that forms between atoms when they share electrons is a(n) _______________________________________________________. 5. A group of atoms that are covalently bonded that act together as a charged ion is known as a(n) ____________________________________________________. 6. A(n) _______________________________________ is a compound that has water chemically attached to its ions. 7. A(n) ______________________________________________________ is formed when a metal transfers electrons to a nonmetal. 8. Molecules that have a slightly positive charged end and a slightly negative charged end are called __________________________________________ molecules. 9. A chemical formula shows the numbers of atoms of each element in a compound using ____________________________________________. 10. The charge (or oxidation number) of an ion is indicated as a _________________________________________________ after the chemical symbol(s). Answer the following questions. 11. How many total atoms are in the compound, Mg3(PO4)2? 12. How many atoms of oxygen are in the compound, Al(OH)3? 13. Which type of bond (ionic or covalent) involves the SHARING of electrons between two NONMETALS? 1 Honors Chemical Bonding Review Name: _____________________ 14. Which type of bond (ionic or covalent) involves the TRANSFER of electrons from a METAL to a NONMETAL? 15. What does a Roman numeral indicate in an ionic compound? 16. Which elements require a Roman numeral? 17. What does it mean for an atom to be “chemically stable”? 18. What is the oxidation number of a phosphide anion? 19. How many valence electrons are needed in the outer energy level of most atoms (except hydrogen and helium) for the atom to be chemically stable? 20. Which group on the periodic table have full outer energy levels? 21. What is the oxidation number of iron in FeS? 22. What is the correct chemical formula and charge for the polyatomic ion, sulfate? 23. Atoms that share three pairs of electrons form what type of bond? 24. What is a diatomic molecule? 25. What element is the most electronegative element on the periodic table? 26. In a water molecule, which atom (hydrogen or oxygen) is more electronegative? Name the following compounds. 27. Al2S3 _____________________________________________________ 28. FeN _____________________________________________________ 29. N2S3 _____________________________________________________ 30. Mg(OH)2 _____________________________________________________ 31. Cu3(PO4)2 _____________________________________________________ 32. Cs2S _____________________________________________________ 33. TiF3 _____________________________________________________ 2 Honors Chemical Bonding Review Name: _____________________ 34. NO2 _____________________________________________________ 35. (NH4)2CO3 _____________________________________________________ 36. B2H6 _____________________________________________________ 37. CrSO3 _____________________________________________________ 38. Ag3PO3 _____________________________________________________ 39. PbO2 _____________________________________________________ 40. Ca(CN)2 _____________________________________________________ 41. Sn3P4 _____________________________________________________ Write the chemical formula for the following compounds. 42. Potassium nitride ______________________________________ 43. Iron (III) sulfide ______________________________________ 44. Sodium bicarbonate ______________________________________ 45. Dinitrogen pentoxide ______________________________________ 46. Cobalt (II) phosphate ______________________________________ 47. Methane ______________________________________ 48. Beryllium oxide ______________________________________ 49. Copper (I) iodite ______________________________________ 50. Arsenic pentabromide ______________________________________ 51. Manganese (II) sulfate ______________________________________ 52. Selenium hexachloride ______________________________________ 53. Indium fluoride ______________________________________ 54. Iron (II) nitride ______________________________________ 55. Titanium (IV) carbonate ______________________________________ 56. Calcium nitrate ______________________________________ 3 Honors Chemical Bonding Review Name: _____________________ Fill in the following chart with the proper information. Chemical Valence Formula Electrons Lewis Structure Polar or Name Nonpolar CO SiF4 NCl3 HCN 4