Summary [Active Recall Sheets] IB Chemistry SL Topic 3: Periodicity Questions and Answers

1. What order are the elements on the periodic table arranged in?
2. Define groups and periods
3. What does the period number and group number tell you?
4. What is a principal energy level?
5. Where are lanthanides vs actinoids?
6. Define periodicity
7. State the trends in the periodic table for: atomic/ionic radius, ionization energy,
electron affinity, and electronegativity
8. Explain trends in atomic radii (+ define what it is)
9. What happens to the atomic radii of transition metals across a period?
10. Explain the concept of shielding
11. Explain trends in ionic radii (+ define what it is)
12. Explain trends in ionization energy (+ define what it is)
13. Does IE always increase across a period?
14. Explain trends in electron affinity (+ define what it is)
15. Explain trends in electronegativity (+ define what it is)
16. How does melting point change in the periodic table?
17. Trends in metallic character?
18. Trends in physical/chemical properties in group 1?
19. Trends in physical/chemical properties in group 17?
20. Colors of halogens?
21. Trends in oxides across a period?
22. What are the notable oxides / their equations?
23. Do halogens displace one another? If so, how?