SCH 3UI Analysis of Periodic Table Trends Assignment…9 Questions Name: ________________________________ DUE Date: __________________ *Complete the assignment independently using Excel to construct the graphs. Remember to include your name in the graph’s title, as proof you completed the computer portion, ie Graph A Atomic number vs Atomic Radius (Susie Snow) 1. Create 2 separate line graphs as follows; Graph A Atomic number vs Atomic radius -Plot a graph with atomic number on the x-axis and atomic radius on the y-axis for the 20 elements presented in the table. Graph B Atomic number vs Ionization Energy -Plot a graph with atomic number on the x-axis and ionization energy on the y-axis. Graph the first and second ionization energy on the graph in two different colours. *For each graph connect successive dots with straight lines. Atomic # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Element Symbol Atomic Radius (pm) First Ionization Energy (kJ/mol) Second Ionization Energy (kJ/mol) 32 31 123 90 82 77 75 73 72 71 154 136 118 111 106 102 99 98 203 174 1312 2372 520 899 801 1086 1402 1314 1681 2081 496 738 578 786 1012 1000 1251 1521 419 590 N/A 5250 7298 1757 2427 2352 2856 3388 3374 3952 4562 1450 1816 1577 1907 2252 2298 2665 3052 1145 2. Examine Graph A a) Which elements are found at the peaks on your graph? Label them ON the graph. What do these elements have in common? b) Which elements are found at the valleys on this graph? Label them ON the graph. What do these elements have in common? 3. Examine Graph B a) Which elements are found at the peaks (1st and 2nd IE) on your graph? Label them ON the graph. What do these elements have in common? b) Which elements are found at the valleys (1st and 2nd IE) on this graph? Label them ON the graph. What do these elements have in common? 4. In general, how are atomic radii and ionization energy related with respect to groups and periods on the periodic table? Analyze your answers for questions 2 and 3. 5. a) What can you conclude with respect to first and second ionization energies with respect to each other? b) Is the pattern of first ionization energy and atomic radii the same for second ionization energy and atomic radii? Explain why or why not. 6. a) Why is there not a value of second ionization energy for hydrogen? b) Which element does not have a third ionization energy? 7. Define the following terms and write a chemical equation using Oxygen to illustrate the term. HINT: Think about what is being lost or gained and what the overall charge on oxygen will be. a) First ionization energy b) Second ionization energy c) Electron affinity 8. a) Define electronegativity b) Where on the periodic table is electronegativity the highest? Explain why this is so. 9. Given the following elements, rank them with respect to position on the periodic table according to… Barium, Magnesium, Lithium, Oxygen and Fluorine a) Increasing electron affinity b) Decreasing electronegativity BONUS: Which trend is this picture referring to?