I-clicker: Periodic Trends February 2014 1. Which of these elements has the smallest atomic radius? a) potassium b) iron c) arsenic d) bromine e) krypton 1. Which of these elements has the smallest atomic radius? a) potassium b) iron c) arsenic d) bromine e) krypton 2. Which of these elements has the largest atomic radius? a) aluminum b) calcium c) fluorine d) potassium e) sulfur 2. Which of these elements has the largest atomic radius? a) aluminum b) calcium c) fluorine d) potassium e) sulfur 3. Which has the largest atoms? a) magnesium b) calcium c) potassium d) lithium e) krypton 3. Which has the largest atoms? a) magnesium b) calcium c) potassium d) lithium e) krypton 4. Which of these elements has the lowest first ionization energy? a) sodium b) aluminum c) phosphorus d) sulfur e) chlorine 4. Which of these elements has the lowest first ionization energy? a) sodium b) aluminum c) phosphorus d) sulfur e) chlorine 5. Which of these elements has the highest first ionization energy? a) sodium b) aluminum c) nitrogen d) oxygen e) chlorine 5. Which of these elements has the highest first ionization energy? a) sodium b) aluminum c) nitrogen d) oxygen? e) chlorine? 6. Which element would be the most difficult to take an electron from? a) silicon b) aluminum c) phosphorus d) arsenic e) chlorine 6. Which element would be the most difficult to take an electron from? a) silicon b) aluminum c) phosphorus d) arsenic e) chlorine 7. Which of these elements has the highest electron affinity? a) lithium b) nitrogen c) potassium d) arsenic e) beryllium 7. Which of these elements has the highest electron affinity? a) lithium b) nitrogen c) potassium d) arsenic e) beryllium 8. Which of these elements has the lowest electron affinity? a) sodium b) aluminum c) phosphorus d) sulfur e) argon 8. Which of these elements has the lowest electron affinity? a) sodium b) aluminum c) phosphorus d) sulfur e) argon 9. Which of these elements has the highest electron affinity? a) Astatine b) Iodine c) Bromine d) Chlorine e) Argon 9. Which of these elements has the highest electron affinity? a) Astatine b) Iodine c) Bromine d) Chlorine e) Argon 10. Which of these elements has the lowest electron affinity? a) polonium b) tellurium c) selenium d) sulfur e) oxygen 10. Which of these elements has the lowest electron affinity? a) polonium b) tellurium c) selenium d) sulfur e) oxygen 11. Which of these elements holds on to its electrons the strongest? a) polonium b) tellurium c) selenium d) sulfur e) phosphorus 11. Which of these elements holds on to its electrons the strongest? a) polonium b) tellurium c) selenium d) sulfur e) phosphorus 12. Which of these elements has the greatest ability to gain another electron? a) phosphorus b) nitrogen c) carbon d) oxygen e) boron 12. Which of these elements has the greatest ability to gain another electron? a) phosphorus b) nitrogen c) carbon d) oxygen e) boron 13. Which of these elements is most likely to give away a valence electron? a) sodium b) helium c) magnesium d) aluminum e) silicon 13. Which of these elements is most likely to give away a valence electron? a) sodium b) helium c) magnesium d) aluminum e) silicon 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 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 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 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 16. The lower the ionization energy a) The easier it is to lose a valence electron b) The more difficult it is to lose a valence electron c) The easier it is to gain a new valence electron d) The smaller the atom is 16. The lower the ionization energy a) The easier it is to lose a valence electron b) The more difficult it is to lose a valence electron c) The easier it is to gain a new valence electron d) The smaller the atom is