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10 pt

Behind the Valence. That’s so Negative. Atomic Nirvana. The 4 Types. The Name’s Bond. 5 pt. 5 pt. 5 pt. 5 pt. 5 pt. 10 pt. 10 pt. 10 pt. 10 pt. 10 pt. 15 pt. 15 pt. 15 pt. 15 pt. 15 pt. 20 pt. 20 pt. 20 pt. 20 pt. 20 pt. 25 pt. 25 pt. 25 pt. 25 pt. 25 pt.

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  1. Behind the Valence That’s so Negative Atomic Nirvana The 4 Types The Name’s Bond 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 pt

  2. What are two things can you say is the same for both Oxygen and Sulfur?

  3. They have the same: Number of valence electrons (6) Form the same ion / valence state (-2) Reactivity in ionic bonds

  4. Soda ash, or sodium carbonate, is used in glassmaking. It is composed of sodium ions and carbonate ions. What is the chemical formula of sodium carbonate?

  5. Na2CO3

  6. Which of the following are actual compounds and which will never form? a) CsF b) Mg2O4 c) AlBr2 d) Li2O

  7. a) CsF b) Mg2O4 c) AlBr2 d) Li2O

  8. An Unknown metal “X” Forms the following salts XO XF2 X3(PO4)2 What Family or group is This metal in?

  9. Metal “X” is in the Alkaline Earth Metals Family (Group 2A)

  10. What are the valence states of the following? (What ions do they form?) Magnesium Nitrogen Potassium Nitrate Phosphate

  11. Magnesium: Mg+2 Nitrogen: N-3 Potassium: K+1 Nitrate: NO3-1 Phosphate: PO4-3

  12. What are the four types of molecular bonds ?

  13. Metallic bonds • Ionic bonds • Molecular covalent bonds • Network covalent bonds

  14. When Sulfur becomes an ion It gains/loses(pick one) _______ electrons to become S ?

  15. It gains two electrons to become S-2 (like oxygen above it in the Periodic Table)

  16. Why are the only solids that electricity flow through metals?

  17. In Metallic Bonds valence electrons are shared by all atoms as a “sea of electrons” that can move freely throughout the substance.

  18. Silicon Carbide is used in special saws to cut steel and concrete. Will it conduct electricity? What type of bonding does it have?

  19. No it will not. Silicon carbide is made up of 2 non-metals and has Network Covalent Bonding

  20. Name the bonds from the clues: • Conducts electricity in its solid form • Conducts electricity when dissolved in water • Does not conduct when dissolved • A solid that neither conducts nor dissolves

  21. Metallic • Ionic • Molecular covalent • Network covalent

  22. Atoms lend and borrow electrons from their _________ ________

  23. Atoms lend and borrow electrons from their Valence shells

  24. What type of bond does Water have and does Water conduct electricity?

  25. H2O is held together by molecular covalent bonds And it does not conduct electricity

  26. If aluminum and oxygen combine, what would the compound formed be? Al__ O__

  27. Al2O3 Al+3 and O-2 must combine like this O-2 Al+3 O-2 Al+3 O-2

  28. In an ionic bond metals _______ electrons while non-metals _______ electrons

  29. In an ionic bond metals lend electrons while non-metals borrow or receive electrons

  30. Why are chemists so interested in an atom’s valence shell?

  31. Because the electrons in the Valence, or outer shell are those most involved with chemical bonding.

  32. What is the Valence Shell? And why are chemists interested in it?

  33. It is the last or outer shell of electrons in an atoms. It is where chemical reactions take place

  34. Identify the following elements • from their electron structure: • 1s22s22p5 = ______ • 1s22s22p63s1 = ______ • 1s22s22p63s23p64s23d3 = ______ • 1s22s22p63s23p64s23d104p65s1 = ______

  35. Fluorine: F Sodium: Na Vanadium: V Rubidium: Rb

  36. Correctly write on the board the electron subshell configuration for copper

  37. 1s22s22p63s23p64s23d9

  38. How many core electrons does Calcium have? How many Valence electrons? What is their configuration?

  39. How many core electrons does Calcium have? 18 (like Argon) How many Valence electrons? 2 What is their configuration? 4s2

  40. What is a 1. Cation 2. Anion

  41. Cation: A positively charged atom Anion: A negatively charged atom

  42. What are the two things atoms want so they can achieve Atomic Nirvana?

  43. A full outer shell of electrons • Balanced electrical charges • (equal numbers of protons and electrons)

  44. Do all elements form compounds to try to attain stability and Atomic Nirvana? Explain

  45. No Noble Gasses are already balanced And do not form compounds

  46. DAILY DOUBLE The density of a substance is related to it chemical bonding If the density of a strange unknown material is 12 g/cm3, how much would a 20 cm3 block weigh?

  47. 20 cm3 x 12 g/cm3 = 240 g

  48. Strontium and the hydroxide ion • combine to form a compound: • What are the ions formed? • What will be the formula of • strontium hydroxide? • 3. Will it dissolve • 4. Will it conduct electricity?

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