Periodic Properties Study Questions

 

1. What 4 things determine how properties change?
2. What two properties determine the reaction tendency of an element?
3. What is atomic radius?
4. What are the patterns for atomic radius in the periodic table?
5. What two factors determine the force felt by the outer electrons?
6. What is the shielding effect?
7. What two factors cause atomic radius to increase in the elements of a column?
8. What causes the atomic radius to decrease across a row?
9. Why are the noble gas atoms larger than expected?
10. What configuration is found in ions?
11. Why is a positive ion smaller than its atom?
12. Why is a negative ion larger than its atom?
13. What is an oxidation number?
14. What is the pattern for oxidation numbers?
15. What property determines the reactivity of the metals?
16. What property determines the reactivity of the non-metals?
17. What is ionization energy?
18. What factors affect ionization energy?
19. What are the patterns for ionization energy in the periodic table?
20. Why do these patterns form?
21. Why are second and higher ionization energies higher?
22. Why do the alkali metals react violently with H₂O?
23. Why are the alkaline earth metals less reactive than the alkali metals?
24. What is electron affinity?
25. What factors influence electron affinity?
26. Why does electron affinity drop down a column?
27. What happens to electron affinity across a row and why?
28. Explain why Be, N, and Ne are exceptions to the trends.
29. Why does ionization energy have the greatest effect on the reactivity of metals?
30. Why does electron affinity have the greatest effect on the reactivity of non-metals?