1. Atomic Bonding

2. Octet Rule Atoms will bond with other atoms to have a full valence shell. Remember First energy level – 2 electrons Second energy level – 8 electrons Third energy level – 8 electrons

3. Three Types of Bonds Covalent – share electrons Nonmetal – Nonmetal Ionic – gain or lose electrons Metal – Nonmetal Metallic – form between two metals Metal - Metal

4. Ionic Bonds Atoms with 3 or less valence electrons will lose electrons Atoms with 5-7 valence electrons will gain electrons

5. What are two types of atomic bonds? A.Ionic and Valence B.Ionic and Covenant C.Covenant and Metallic D.Covalent and Ionic

6. If an atom has 7 valence electrons it will… A.Gain 1 electron B.Lose 7 electrons C.Form a covalent bond D.Gain 7 electrons

7. Example Draw a Bohr’s Diagram for Sodium 1 valence electron

8. Draw a Bohr’s Diagram for Chlorine 7 Valence Electrons

9. Sodium will lose its one valence electron Giving it an overall charge of +1 Chlorine will gain one valence electron Giving it an overall charge of -1

11. Charges of Ionic Bonds The overall charge of ionic bonds is 0 Sodium + Chlorine = Sodium Chloride The negative force attracts the positive force which holds the atoms together. 1+1-Net charge = 0

12. Oxygen will _________ ______ electron(s) to satisfy the octet rule. A.Gain 1 B.Lose 1 C.Gain 2 D.Lose 2

13. When atoms gain or lose electrons to form a bond it is a ________ bond. A.Ionic B.Covalent C.Metallic D.Covenant

14. Magnesium has _________ valence electron(s). A.2 B.1 C.3 D.6

15. Naming Ionic Bonds 1.) The name of metal always comes first. 2.) Replace the ending of the nonmetal to –ide. Example: Sodium + Chlorine = Sodium Chloride

16. What is the name of the compound that forms between bromine and lithium? A.Bromine Lithide B.Lithium Bromine C.Lithium Bromide D.Bromide Lithium

17. Covalent bonds Remember Forms between 2 nonmetals Share electrons Lets look at an example between Oxygen and Hydrogen

18. How many valence electrons does hydrogen have? A.1 B.7 C.8 D.2

19. How many valence electrons does oxygen have? A.1 B.2 C.6 D.7

20. Draw a Bohr’s Diagram for hydrogen and oxygen

22. Naming Covalent Bonds PrefixNumber Mono -1 Di -2 Tri -3 Tetra -4 Penta -5 Hexa -6 Hepta -7 Octa -8 Nona -9 Deca -10

23. 1.Name the first element. 2.The ending of the second element gets changed to –ide 3.Prefixes are used to denote the number of atoms 4.Mono is not used to name the first element

24. Water = H 2 O Dihydrogen monoxide

25. Name the compound SiF 4 A.Monosilicon Tetrafluoride B.Silicon Tetrafluoride C.Tetrasilicon fluoride D.Silicon Fluorine

26. Which type of bond shares electrons and occurs between two non metals? A.Covalent B.Ionic C.Metallic D.None of the above