Orbitals and the Periodic Table Tutorial Questions

Orbitals and the Periodic Table Tutorial Questions 1. Which of the following combinations of quantum numbers correspond to electrons present in the ground state of phosphorous? (Choose all that apply) a. 2, 0, 1, ½ b. 1, 0, 0, -½ c. 2, 1, -1, ½ d. 1, 1, 0, 0 e. 3, 1, -1, ½ f. 3, 0, 0, ½ 2. An electron orbital containing 1 planar node and 2 spherical nodes would correspond to which orbital? 3. Write a valid combination of quantum numbers to describe an electron in the following subshells: a. 4d b. 6s c. 5f d. 2p 4. Write the electron configuration for ground state Cr and then write the configurations for Cr3+ and Cr6+. 5. Write the electron configurations for the following species. a. Fe

b. B2c. Mg2+ d. V1+ e. Ge2+ 6. Rank the following elements from least to most electronegative: P, O, Mg, Rb, Ca 7. Which of the following species are isoelectronic with Si2+? a. P3+ b. S2c. Mg d. Na+ e. Ne28. Which of the following quantum number combinations are not valid, and why? a. 4, 2, -2, ½ b. 3, 3, 0, ½ c. 1, 0, 1, -½ d. 2, 1, 1, -½ 9. Rank the following elements in order of decreasing ionization energy: Cr, As, N, Sr, F