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Electrons and Chemical Bonding 2012 Day 1


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Electrons and Chemical Bonding 2012 Day 1

  1. 1. You Will Need: 1.Pencil, Text Book- Periodic Table, Colored Pencils 2. Electrons and Chemical Bonding- 2 pages-4 sides (Pick-up from bookshelf- Please Staple) 4. Balancing Equations #1- Due Today
  2. 2. • The substances on the left side of a chemical equation are called this…..• What is the number called in front of a chemical formula that tells you how many models to build?• What Law states you can neither create or destroy matter?• The substances on the right of the chemical equation are called this……• What type of substance slows down or stops a chemical reaction?
  3. 3. • Numbers in a formula that represent the number needed of each atom in a compound are called this……• Why are elements’ atoms on the periodic table neutral?• The number of electrons on the outermost shell of an atom is called the atom’s ___________.• How many more bonds does Nitrogen need to have a full outer shell?• To slow down or stop a chemical reaction you would use an ____________?
  4. 4. Chemical Bonding is the joining of atoms to form new substances.The properties of these new substances are different from the properties of the original elements.Understanding the Electron Configuration for each atom will help you understand how different elements will bond.Not all the electrons in an atom are used to make chemical bonds.
  5. 5. Understanding the Electron Configuration for each atom will helps you understand how different elements will bond.It is the electrons on the OUTER-MOST Level or VALENCE electrons, that determine how an atom will react. (bond)Atoms want to be “happy”….in other words, have a full outer shell.
  6. 6. Complete the chart by using your Periodic Table . “Magic Number is “8” Element Group Valence Bond or Not Bond 1 1 Bond Hydrogen 16 6 Bond Sulfur
  7. 7. • Usually between Metals and Nonmetals • Transfer of electrons – atoms become IONS Quarts • Form Crystal Lattices uthBism
  8. 8. • Are Brittle• High Melting and Boiling points• Dissolve Easily in water• Form compounds• Specific Shape S A LT
  9. 9. Neutral Atom of Aluminum P=13 N=14 P=13 N=14Positively ChargedAluminum Ion (3+)
  10. 10. Page 231 2 3 P = 13+ 8 2 8 P = 13+ N = 14 N = 14Neutral atom because Positive ION becauseit has equal amounts it has MOREof plus (PROTONS) PROTONS thanand minus ELECTRONS.(ELECTRONS)particles.
  11. 11. • Go to: Learning Point• Select “Daily Assignments”• Select this week: April 9th – 13th• Select Creating Ionic CompoundsREMEMBER: The reason these atoms are bonding is because they are oppositly charged. Positive to Negative Attraction. Metals – Give away electrons NonMetals – Take or Gain electrons
  12. 12. • Select “Test Your Skills” Tab• As a group: Answer as many of the 39 questions as your group can• Some Advanced questions you will not know: 2. Aufbau Principle 4. Referring to Oxygen on the P.T. 5. Answer is B 6. Answer is C 17. Answer is C 32. Answer is D 36. Answer is D 38. Answer is A 39. Answer is C
  13. 13. Page 233
  14. 14. • Why does Sodium • Why do Sodium and become an Ion? Chlorine bond? Positive or Negative? • What is the overall Why? charge of the compound?• Why does Chlorine • Does NaCl have the same become an Ion? characteristics as Na and Positive or Negative? Cl or does the compound Why? have its own unique
  15. 15. • Complete up to Forming Sodium Chloride – Access PPT and Answer Questions• STAR Cards #61-101 – Due Tomorrow• Quiz on Cards 61-101 - Tomorrow