Ch 5 T est Q uestions

1. Ch 5 Test Questions Most commonly missed questions

2. Multiple Choice 16 • What structure will atoms have after losing or gaining electrons? • A crystal • A polymer • A noble gas • A double bond

3. Multiple Choice 16 • What structure will atoms have after losing or gaining electrons? • A crystal • A polymer • A noble gas • A double bond When atoms lose or gain electrons, what kind of bonds are they forming??

4. Multiple Choice 16 • What structure will atoms have after losing or gaining electrons? • A crystal • A polymer • A noble gas • A double bond When atoms lose or gain electrons, what kind of bonds are they forming?? Ionic bonds form which structure?

5. Multiple Choice 16 • What structure will atoms have after losing or gaining electrons? • A crystal • A polymer • A noble gas • A double bond When atoms lose or gain electrons, what kind of bonds are they forming?? Ionic bonds form which structure?

6. Multiple Choice 13 • Name the type of bond that carbon will NOT form. • Single bond • Ionic bond • Double bond • Triple bond

7. Multiple Choice 13 • Name the type of bond that carbon will NOT form. • Single bond • Ionic bond • Double bond • Triple bond Which of these is not like the others??

8. Multiple Choice 13 • Name the type of bond that carbon will NOT form. • Single bond • Ionic bond • Double bond • Triple bond Which of these is not like the others??

9. Multiple Choice 15 • On the periodic table, which groups of elements tend to form negative ions? • Group 1 and Group 2 • Group 16 and Group 17 • Group 13 and Group 14 • Group 16 and Group 18

10. Multiple Choice 15 • On the periodic table, which groups of elements tend to form negative ions? • Group 1 and Group 2 • Group 16 and Group 17 • Group 13 and Group 14 • Group 16 and Group 18 This was purely a memorization question. Group Charge 1 +1 2 +2 16 -2 17 -1

11. Multiple Choice 15 • On the periodic table, which groups of elements tend to form negative ions? • Group 1 and Group 2 • Group 16 and Group 17 • Group 13 and Group 14 • Group 16 and Group 18 This was purely a memorization question. Group Charge 1 +1 2 +2 16 -2 17 -1

12. Multiple Choice 17 • Silicon has 4 valence electrons. Which is it most likely to form? • A cation • An anion • Covalent bonds • Ionic bonds

13. Multiple Choice 17 • Silicon has 4 valence electrons. Which is it most likely to form? • A cation • An anion • Covalent bonds • Ionic bonds Which of these is not like the others??

14. Multiple Choice 17 • Silicon has 4 valence electrons. Which is it most likely to form? • A cation • An anion • Covalent bonds • Ionic bonds Which of these is not like the others??

15. Multiple Choice 18 • How many electrons does potassium need to gain or lose to become stable? • Gain 1 • Gain 2 • Lose 1 • Lose 2

16. Multiple Choice 18 • How many electrons does potassium need to gain or lose to become stable? • Gain 1 • Gain 2 • Lose 1 • Lose 2 How many valence electrons does potassium have?

17. Multiple Choice 18 • How many electrons does potassium need to gain or lose to become stable? • Gain 1 • Gain 2 • Lose 1 • Lose 2 How many valence electrons does potassium have? 1 valence, so only needs to LOSE 1.

18. Multiple Choice 20 • How many single, double, and triple bonds does it have? • 10 single bonds, 0 double bonds, & 0 triple bonds • 8 single bonds, 1 double bond, & 0 triple bonds • 1 single bond, 8 double bonds, & 0 triple bonds • 0 single bonds, 0 double bonds, & 10 triple bonds

19. Single Bonds Double Bonds

20. Single Bonds - 8 Double Bonds - 1

21. Multiple Choice 20 • How many single, double, and triple bonds does it have? • 10 single bonds, 0 double bonds, & 0 triple bonds • 8 single bonds, 1 double bond, & 0 triple bonds • 1 single bond, 8 double bonds, & 0 triple bonds • 0 single bonds, 0 double bonds, & 10 triple bonds

22. Short Answer: 8 valence • Predict whether an element with a valence of 8 is most likely form ionic bonds, covalent bonds, or no chemical bonds with other atoms. Explain.

23. Short Answer: 8 valence • Predict whether an element with a valence of 8 is most likely form ionic bonds, covalent bonds, or no chemical bonds with other atoms. Explain. 3 points: • 8 valence = • 8 valence = • Therefore…

24. Short Answer: 8 valence • Predict whether an element with a valence of 8 is most likely form ionic bonds, covalent bonds, or no chemical bonds with other atoms. Explain. 3 points: • 8 valence = Noble Gas • 8 valence = stable • Therefore, not likely to form bonds

25. Short Answer: 7 valence • Draw the Lewis dot structure of Chlorine (Cl) [or Fluorine (F). Propose an explanation for why it does not form double bonds.

26. Short Answer: 7 valence • Draw the Lewis dot structure of Chlorine (Cl) [or Fluorine (F). Propose an explanation for why it does not form double bonds. 4 points: • Drawing: seven valence = seven dots • Only 1 lonely electron • Therefore only 1 bond needed

27. Short Answer: 7 valence • Draw the Lewis dot structure of Chlorine (Cl) [or Fluorine (F). Propose an explanation for why it does not form double bonds. 4 points: • Drawing: seven valence = seven dots • Only 1 lonely electron • Therefore only 1 bond needed • Most likely going to form ionic bonds Bonus Point!