Take out your interactive notebook and set up an In, Out Through on your next two open pages.

1. Take out your interactive notebook and set up an In, Out Through on your next two open pages.

2. In Activity Why do atoms have a neutral (no) charge?

3. Ionic Bonding • Atoms don’t have an electric charge. They are neutral because the number of positive charges (protons) is always equal to the number of negative charges (electrons)

4. IONIC CHEMICAL BONDING Atoms connect with other atoms to form chemical bonds.

5. Types of Chemical Bonds There are four types of chemical bonds: • Ionic Bonds • Covalent Bonds • Metallic Bonds • Hydrogen Bonds We will study ionic and covalent bonding.

6. Li F Ionic Bondingoccurs when electron(s) are transferred from one atom to another. (Metals bonding with Nonmetals) Be sure to draw!

7. Li+ F- Cation Anion Ionic Bonding • When electrons are lost or gained the atom becomes an ion (an atom with a charge). • Negatively charged ions are attracted to positively charged ions like the opposite poles of a magnet.

8. Ionic Bonding with Sodium (Na) and Chlorine (Cl) results in NaCl or table salt

9. Ionic Bonding • Here is what happens during the reaction between Sodium (Na) and Chlorine (Cl). • When Sodium loses an electron it has an overall positive charge. This is called a Cation. • When Chlorine gains an electron it has an overall negative charge and is called an Anion

10. Here is another example of Ionic Bonding between Potassium and Fluorine.

11. K F In an IONIC bond, electrons are lost or gained, resulting in the formation of IONS in ionic compounds.

12. K F

13. K F

14. K F

15. K F

16. K F

17. K F

18. _ + K F

19. _ + K F The compound potassium fluoride consists of potassium (K+) ions and fluoride (F-) ions

20. _ + K F The ionic bond is the attraction between the positive K+ ion and the negative F- ion

21. Out Activity Ionic Bonding • Draw the Electron Dot Diagram for Potassium and Iodine. • Show how these two will bond in an Ionic Bond. • Be sure to use arrows and charge symbols.

22. Ionic Bonding Notes Complete. Stop at this slide.

23. Covalent Bonds

24. Continue using the Cornell notes you started with Ionic Bonding. Make a new title called “Covalent Bonding” in the through section. So what are covalent bonds?

25. In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule).

26. In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining electrons, atoms now share an electron pair.

27. In covalent bonding, atoms still want to achieve a noble gas configuration (the octet rule). But rather than losing or gaining electrons, atoms now share an electron pair. The shared electron pair is called a bonding pair

28. Chlorine forms a covalent bond with itself Cl2

29. How will two chlorine atoms react? Cl Cl

30. Cl Cl Each chlorine atom wants to gain one electron to achieve an octet

31. Cl Cl Neither atom will give up an electron – chlorine is highly electronegative. What’s the solution –what can they do to achieve an octet?

32. Cl Cl

33. Cl Cl

34. Cl Cl

35. Cl Cl

36. Cl Cl octet

37. Cl Cl octet circle the electrons for each atom that completes their octets

38. Cl Cl The octet is achieved by each atom sharing the electron pair in the middle circle the electrons for each atom that completes their octets

39. Cl Cl The octet is achieved by each atom sharing the electron pair in the middle circle the electrons for each atom that completes their octets

40. Cl Cl This is the bonding pair circle the electrons for each atom that completes their octets

41. Cl Cl It is a single bonding pair circle the electrons for each atom that completes their octets

42. Cl Cl It is called aSINGLE BOND circle the electrons for each atom that completes their octets

43. Cl Cl Single bonds are abbreviated with a dash circle the electrons for each atom that completes their octets

44. Cl Cl This is the chlorine molecule, Cl2 circle the electrons for each atom that completes their octets

45. O2 Oxygen is also one of the diatomic molecules

46. O O How will two oxygen atoms bond?

47. O O Each atom has two unpaired electrons

48. O O

49. O O

50. O O