1. I-clicker: Periodic Trends
February 2014

2. 1. Which of these elements has the smallest atomic radius?
a) potassium b) iron c) arsenic d) bromine e) krypton

3. 1. Which of these elements has the smallest atomic radius?
a) potassium b) iron c) arsenic d) bromine e) krypton

4. 2. Which of these elements has the largest atomic radius?
a) aluminum b) calcium c) fluorine d) potassium e) sulfur

5. 2. Which of these elements has the largest atomic radius?
a) aluminum b) calcium c) fluorine d) potassium e) sulfur

6. 3. Which has the largest atoms?
a) magnesium b) calcium c) potassium d) lithium e) krypton

7. 3. Which has the largest atoms?
a) magnesium b) calcium c) potassium d) lithium e) krypton

8. 4. Which of these elements has the lowest first ionization energy?
a) sodium b) aluminum c) phosphorus d) sulfur e) chlorine

9. 4. Which of these elements has the lowest first ionization energy?
a) sodium b) aluminum c) phosphorus d) sulfur e) chlorine

10. 5. Which of these elements has the highest first ionization energy?
a) sodium b) aluminum c) nitrogen d) oxygen e) chlorine

11. 5. Which of these elements has the highest first ionization energy?
a) sodium b) aluminum c) nitrogen d) oxygen? e) chlorine?

12. 6. Which element would be the most difficult to take an electron from?
a) silicon b) aluminum c) phosphorus d) arsenic e) chlorine

13. 6. Which element would be the most difficult to take an electron from?
a) silicon b) aluminum c) phosphorus d) arsenic e) chlorine

14. 7. Which of these elements has the highest electron affinity?
a) lithium b) nitrogen c) potassium d) arsenic e) beryllium

15. 7. Which of these elements has the highest electron affinity?
a) lithium b) nitrogen c) potassium d) arsenic e) beryllium

16. 8. Which of these elements has the lowest electron affinity?
a) sodium b) aluminum c) phosphorus d) sulfur e) argon

17. 8. Which of these elements has the lowest electron affinity?
a) sodium b) aluminum c) phosphorus d) sulfur e) argon

18. 9. Which of these elements has the highest electron affinity?
Astatine
Iodine
c) Bromine
d) Chlorine
e) Argon

19. 9. Which of these elements has the highest electron affinity?
Astatine
Iodine
c) Bromine
d) Chlorine
e) Argon

20. 10. Which of these elements has the lowest electron affinity?
a) polonium b) tellurium c) selenium d) sulfur e) oxygen

21. 10. Which of these elements has the lowest electron affinity?
a) polonium b) tellurium c) selenium d) sulfur e) oxygen

22. 11. Which of these elements holds on to its electrons the strongest?
a) polonium b) tellurium c) selenium d) sulfur e) phosphorus

23. 11. Which of these elements holds on to its electrons the strongest?
a) polonium b) tellurium c) selenium d) sulfur e) phosphorus

24. 12. Which of these elements has the greatest ability to gain another electron?
a) phosphorus b) nitrogen c) carbon d) oxygen e) boron

25. 12. Which of these elements has the greatest ability to gain another electron?
a) phosphorus b) nitrogen c) carbon d) oxygen e) boron

26. 13. Which of these elements is most likely to give away a valence electron?
a) sodium b) helium c) magnesium d) aluminum e) silicon

27. 13. Which of these elements is most likely to give away a valence electron?
a) sodium b) helium c) magnesium d) aluminum e) silicon

28. 14. As you move up and to the right on the periodic table:
a) atomic radius increases and electron affinity increases b) atomic radius decreases and electron affinity increases c) atomic radius increases and electron affinity decreases d) atomic radius decreases and electron affinity decreases

29. 14. As you move up and to the right on the periodic table:
a) atomic radius increases and electron affinity increases b) atomic radius decreases and electron affinity increases c) atomic radius increases and electron affinity decreases d) atomic radius decreases and electron affinity decreases

30. 15. As you move from the top to the bottom of the periodic table:
a) ionization energy increases and electron affinity increases b) ionization energy decreases and electron affinity increases c) ionization energy increases and electron affinity decreases d) ionization energy decreases and electron affinity decreases

31. 15. As you move from the top to the bottom of the periodic table:
a) ionization energy increases and electron affinity increases b) ionization energy decreases and electron affinity increases c) ionization energy increases and electron affinity decreases d) ionization energy decreases and electron affinity decreases

32. 16. The lower the ionization energy
The easier it is to lose a valence electron
The more difficult it is to lose a valence electron
The easier it is to gain a new valence electron
The smaller the atom is

33. 16. The lower the ionization energy
The easier it is to lose a valence electron
The more difficult it is to lose a valence electron
The easier it is to gain a new valence electron
The smaller the atom is