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Chemical Bonds: The Formation of Compounds From Atoms

Chemical Bonds: The Formation of Compounds From Atoms . Outline Periodic Trends Atomic Radius Metallic Character Ionization Energy Ionic Radius Valance Electrons Electron-Dot Symbols Bonding Electron-Dot Formulas VSEPR Electronegativity Polarity. Chapter 11.

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Chemical Bonds: The Formation of Compounds From Atoms

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  1. Chemical Bonds: The Formation of Compounds From Atoms • Outline • Periodic Trends • Atomic Radius • Metallic Character • Ionization Energy • Ionic Radius • Valance Electrons • Electron-Dot Symbols • Bonding • Electron-Dot Formulas • VSEPR • Electronegativity • Polarity Chapter 11

  2. Periodic Properties • Atomic Size – determined by how far the outermost electrons are from the nucleus

  3. Example – Atomic Size Which has the larger atomic size? Li or K and Li or F • K, Li • Li, F • K, F • Li, Li • Not enough information

  4. Periodic Properties • Metallic Character

  5. Example – Metallic Character • Which has more metallic character: S or Na?

  6. Periodic Properties – Ionization Energy

  7. Ionization Energy

  8. Example – Ionization Energy Which has the higher ionization energy: Mg or Ca?

  9. Example – Ionization Energy Which has the higher ionization energy: Sn or Pb?

  10. Example – Ionization Energy Which has the higher ionization energy: Se or S?

  11. How does the radius of a cation differ from an atom?

  12. What happens when an atom loses an electron?

  13. How does the radius of an anion differ from an atom?

  14. What happens when an atom gains an electron?

  15. How do atoms bond?

  16. What does a formula unit look like?

  17. What is one way that a metal obtains an octet?

  18. What is one way that a nonmetal obtains an octet?

  19. Example – Ionic Bonding • What is the Lewis structure when aluminum and chlorine form an ionic compound?

  20. What compound will be formed by the reaction of potassium and chlorine?

  21. What compound will be formed by the reaction of magnesium and oxygen?

  22. What compound will be formed by the reaction of sodium and sulfur?

  23. What compound will be formed by the reaction of calcium and chlorine?

  24. How can we estimate the bond length of a molecule?

  25. What does the bonding in H2 look like? + 1s1 1s1

  26. How does Cl2 bond? + [Ne]3s23p5 [Ne]3s23p5

  27. What orbital(s) does Cl2 use to bond? Cl:[Ne]3s23p5

  28. How does O2 bond? +

  29. How many valence electrons are shared?

  30. How many valence electrons are shared in N2?

  31. What are the diatomic elements?

  32. How does H2O bond?

  33. Are all the valence electrons shared? + + or

  34. Does each atom have a complete outer shell?

  35. Example – Covalent Bonding • What is the Lewis structure for formaldehyde, CH2O?

  36. What is the shape when 2 atoms are attached to the central atom?

  37. What is the shape when 3 atoms are attached to the central atom?

  38. What is the shape when 4 atoms are attached to the central atom?

  39. What is the shape when 3 atoms + lone pair are attached to the central atom?

  40. What is the shape when 2 atoms + 2 lone pairs are attached to the central atom?

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