Description 1. How does the attraction the nucleus exerts on electrons in an atom change as the row ...

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Description 1. How does the attraction the nucleus exerts on electrons in an atom change as the row number increases: 2. Predict the Z number of the smallest element in row 5. 3. Which of the following species is smaller: Cs or Cs+1? Is your answer consistent with your answer to question 1? 4. What simple ion is formed from the element Z = 39? 5. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z = 49 and Z = 51. 6. What is(are) the noble gas(es) that has(have) the same electron configuration as each of the ions in the compound formed from Z = 38 and Z = 34? 7. Why is the following electron designation not possible: 18Ar4s2 3dxy 2 3dxz 1 4px2 1 . 8. Draw the Lewis structure for the compound formed from elements Z = 32 and Z = 16. 9. Draw the Lewis structure for the following ion: BF4 -1 . Using VSEPR theory, what is its geometry and electronic structure? 10. Using your Lewis structure for the BF4 -1 , calculate the formal charge on each atom. 11. Draw the Lewis structure for the SeO3 -2 ion, then using VSEPR theory, what is its geometry and electronic structure? 11. Using VSEPR theory, predict the geometry and electronic structure for AlH3 and AsH3. 12. Draw the Lewis structure for the HTeO4 -1 ion, and calculate the formal charge on each atom. 13. How might the valence electrons be arranged in PO3 -3 ion assuming that P can have an expanded octet. Predict its geometry and electronic structure using VSEPR theory. 14. Calculate the formal charges on each of the atoms comprising the hydrogen silicate ion (HSiO3 -1 ). What is its VSEPR geometry and electronic structure? 15. Predict a possible Lewis structure(s) for N2O3. 16. Use VSEPR theory, explain why the bond angle between the fluorine atoms in OF2 is not 180o . 17. Using VSEPR theory, predict the molecular geometry and electronic structures of SnF4 and SeF2. 18. Using the symbol for the previous noble gas to indicate core electrons, write the electron configuration for Z = 46. 19. Draw at least 2 Lewis structures for C3H4F2. 20. Why is the spdf notation for Cr written as: 18Ar4s2 3dxy 2 3dxz 1 3dyz 1 3dx2-y2 0 3dz2 0 , incorrect?