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10/26 What are the 3 types of chemical bonds? - Part II

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mrheffner

The document provides information about chemical bonds, compounds, and the three main types of bonds - ionic, covalent, and metallic. It discusses how atoms bond through the exchange or sharing of electrons between elements. Examples are provided to demonstrate identifying ionic versus covalent bonds based on whether the elements involved are metals/nonmetals and whether electrons are exchanged or shared. Students are given practice questions to work through.

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Launch: 10/26 Grab your binder and immediately take a seat Place homework (Mind Map) on desk Why do atoms form bonds? What subatomic particles are involved in bonding? Label the following as metal, semimetal, or nonmetal i. Si ii. Al iii. H iv. Ca v.Ni
What are the 3 types of chemical bonds? – Part II Mr. Heffner 10/26/09
What is a chemical compound? A chemical compound is… a substance made of two or more atoms held together by a chemical bond a.k.a. molecule just means “stuff”
What is a chemical compound? Two ways to represent compounds Drawing Chemical formula 2 Hydrogen atoms 1 Oxygen atom Chemical Bond H 2 O Subscript H H O
What is a chemical compound? Two ways to represent compounds Drawing Chemical formula 1 sodium atom 1 oxygen atom 1 hydrogen atom NaOH capital letter = different element Na H O
What are the 3 types of bonds? Ionic Electrons are exchanged (or transferred) Between a metal and a nonmetal Covalent Electrons are shared Between a nonmetal and a nonmetal Metallic Electrons are shared Between a metal and a metal Which electrons?
Is it ionic, covalent, or metallic? Example: LiCl Step #1: identify the atoms Li = lithium Cl = chlorine
What are the 3 main categories? Example: LiCl Step #2: metal or nonmetal? Metals Semimetals Nonmetals
Is it ionic, covalent, or metallic? Example: LiCl Step #3: match the combination a metal (Li) and a nonmetal (Cl) Ionic Li Cl
Is it ionic, covalent, or metallic? Example: H 2 O Step #1: identify the atoms H = hydrogen (X2) O = oxygen
What are the 3 main categories? Example: H 2 O Step #2: metal or nonmetal? Metals Semimetals Nonmetals
Is it ionic, covalent, or metallic? Example: H 2 O Step #3: match the combination two nonmetals (H) and a nonmetal (O) Covalent H H O
Practice Questions Practice Questions Worksheet Answer in complete sentences!
Benchmark Scoring This does not count for a grade! Switch papers with your partner Transpose scores onto bubble sheet Hypothesis X 2 = 4 Method X 2 = 8 Diagram X 2 = 4 Table of results X 2 = 4 Longer report X 2 = 4 Conclusion X 2 = 4 If it is a decimal, round down after doubling
Exit Slip In the chemical compound SOCl 2 there is/are two chlorine atoms and two sulfur atoms. only one atom of each element. the element solarium (So). one sulfur atom, two chlorine atoms, and one oxygen atom.
Exit Slip In covalent bonding, valence electrons are exchanged. only metals interact with other metals. valence electrons are shared atoms become less stable due to the octet rule.
Exit Slip Ionic bonds form between which two types of elements? alkali and alkaline earth metals halogens and other halogens metals and nonmetals nonmetals and other nonmetals
Exit Slip What type of compound is H 2 SO 4 ? metallic covalent ionic none of the above
Exit Slip Which of the following is an example of an ionic compound? AlCl 3 CCl 4 O 2 Zn 2+
Homework Finish practice questions

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10/26 What are the 3 types of chemical bonds? - Part II

  • 1. Launch: 10/26 Grab your binder and immediately take a seat Place homework (Mind Map) on desk Why do atoms form bonds? What subatomic particles are involved in bonding? Label the following as metal, semimetal, or nonmetal i. Si ii. Al iii. H iv. Ca v.Ni
  • 2. What are the 3 types of chemical bonds? – Part II Mr. Heffner 10/26/09
  • 3. What is a chemical compound? A chemical compound is… a substance made of two or more atoms held together by a chemical bond a.k.a. molecule just means “stuff”
  • 4. What is a chemical compound? Two ways to represent compounds Drawing Chemical formula 2 Hydrogen atoms 1 Oxygen atom Chemical Bond H 2 O Subscript H H O
  • 5. What is a chemical compound? Two ways to represent compounds Drawing Chemical formula 1 sodium atom 1 oxygen atom 1 hydrogen atom NaOH capital letter = different element Na H O
  • 6. What are the 3 types of bonds? Ionic Electrons are exchanged (or transferred) Between a metal and a nonmetal Covalent Electrons are shared Between a nonmetal and a nonmetal Metallic Electrons are shared Between a metal and a metal Which electrons?
  • 7. Is it ionic, covalent, or metallic? Example: LiCl Step #1: identify the atoms Li = lithium Cl = chlorine
  • 8. What are the 3 main categories? Example: LiCl Step #2: metal or nonmetal? Metals Semimetals Nonmetals
  • 9. Is it ionic, covalent, or metallic? Example: LiCl Step #3: match the combination a metal (Li) and a nonmetal (Cl) Ionic Li Cl
  • 10. Is it ionic, covalent, or metallic? Example: H 2 O Step #1: identify the atoms H = hydrogen (X2) O = oxygen
  • 11. What are the 3 main categories? Example: H 2 O Step #2: metal or nonmetal? Metals Semimetals Nonmetals
  • 12. Is it ionic, covalent, or metallic? Example: H 2 O Step #3: match the combination two nonmetals (H) and a nonmetal (O) Covalent H H O
  • 13. Practice Questions Practice Questions Worksheet Answer in complete sentences!
  • 14. Benchmark Scoring This does not count for a grade! Switch papers with your partner Transpose scores onto bubble sheet Hypothesis X 2 = 4 Method X 2 = 8 Diagram X 2 = 4 Table of results X 2 = 4 Longer report X 2 = 4 Conclusion X 2 = 4 If it is a decimal, round down after doubling
  • 15. Exit Slip In the chemical compound SOCl 2 there is/are two chlorine atoms and two sulfur atoms. only one atom of each element. the element solarium (So). one sulfur atom, two chlorine atoms, and one oxygen atom.
  • 16. Exit Slip In covalent bonding, valence electrons are exchanged. only metals interact with other metals. valence electrons are shared atoms become less stable due to the octet rule.
  • 17. Exit Slip Ionic bonds form between which two types of elements? alkali and alkaline earth metals halogens and other halogens metals and nonmetals nonmetals and other nonmetals
  • 18. Exit Slip What type of compound is H 2 SO 4 ? metallic covalent ionic none of the above
  • 19. Exit Slip Which of the following is an example of an ionic compound? AlCl 3 CCl 4 O 2 Zn 2+