ELECTRONIC STRUCTURE ASSIGNMENT

  1. Read the labels of several commercial products and identify monatomic ions of at least four transition elements contained in the products. Write the complete electron configurations of these cations.
  2. Read the labels of several commercial products and identify monatomic ions of at least six main group elements contained in the products. Write the complete electron configurations of these cations and anions.
  3. Using complete subshell notation (not abbreviations, 1s22s22p6, and so forth), predict the electron configuration of each of the following atoms:

    (a) C

    (b) P

    (c) V

    (d) Sb

    (e) Sm

  4. Using complete subshell notation (1s22s22p6, and so forth), predict the electron configuration of each of the following atoms:

    (a) N

    (b) Si

    (c) Fe

    (d) Te

    (e) Tb

  5. Is 1s22s22p6 the symbol for a macroscopic property or a microscopic property of an element? Explain your answer.
  6. What additional information do we need to answer the question “Which ion has the electron configuration 1s22s22p63s23p6”?
  7. Draw the orbital diagram for the valence shell of each of the following atoms:

    (a) C

    (b) P

    (c) V

    (d) Sb

    (e) Ru

  8. Use an orbital diagram to describe the electron configuration of the valence shell of each of the following atoms:

    (a) N

    (b) Si

    (c) Fe

    (d) Te

    (e) Mo

  9. Using complete subshell notation (1s22s22p6, and so forth), predict the electron configurations of the following ions.

    (a) N3–

    (b) Ca2+

    (c) S–

    (d) Cs2+

    (e) Cr2+

    (f) Gd3+

  10. Which atom has the electron configuration 1s22s22p63s23p64s23d104p65s24d2?
  11. Which atom has the electron configuration 1s22s22p63s23p63d74s2?
  12. Which ion with a +1 charge has the electron configuration 1s22s22p63s23p63d104s24p6? Which ion with a –2 charge has this configuration?
  13. Which of the following atoms contains only three valence electrons: Li, B, N, F, Ne?
  14. Which of the following has two unpaired electrons?

    (a) Mg

    (b) Si

    (c) S

    (d) Both Mg and S

    (e) Both Si and S.

  15. Which atom would be expected to have a half-filled 6p subshell?
  16. Which atom would be expected to have a half-filled 4s subshell?
  17. In one area of Australia, the cattle did not thrive despite the presence of suitable forage. An investigation showed the cause to be the absence of sufficient cobalt in the soil. Cobalt forms cations in two oxidation states, Co2+ and Co3+. Write the electron structure of the two cations.
  18. Thallium was used as a poison in the Agatha Christie mystery story “The Pale Horse.” Thallium has two possible cationic forms, +1 and +3. The +1 compounds are the more stable. Write the electron structure of the +1 cation of thallium.
  19. Write the electron configurations for the following atoms or ions:

    (a) B3+

    (b) O–

    (c) Cl3+

    (d) Ca2+

    (e) Ti

  20. Cobalt–60 and iodine–131 are radioactive isotopes commonly used in nuclear medicine. How many protons, neutrons, and electrons are in atoms of these isotopes? Write the complete electron configuration for each isotope.
  21. Write a set of quantum numbers for each of the electrons with an n of 3 in a Sc atom.
Mugisa Geofrey and SOLOMON TATWEBWA

Mugisa Geofrey Zziwa is a learning facilitator with Ultimate MultiMedia Consult. With knowledge of the following topics:  Digital Pedagogy training or digital teaching skills, how to integrate ICT in teaching.  Journalism and the Internet/Computers (How internet helps journalism)  Basic web design & CMS and Multimedia Content publishing  Digital security and safety basics for journalists  Best practices for ensuring safety online  Data Mashups  Collaborative digital content development tools  Live streaming and Live reporting  Immersive Storytelling tools and practices  Among others I have conducted a number of trainings which include: • Multimedia Journalism and Digital Safety training for university Students held in Makerere University, Kampala International University and Cavendish University and sponsored by the American Embassy Uganda. • Digital Pedagogy training for Science Technology Engineering and Mathematics (STEM) Teachers held in Iganga Girls SSS in Iganga District for Eastern region Uganda, St. Maria Gorretti in MPigi District for Central region Uganda, and Teso College ALOET for the Karamoja region Uganda. Sponsored by Forum for African Women Educationalists Uganda (FAWEU) Training Teachers on integration of ICT in teaching and delivering lessons to students. • Digital Pedagogy at American Center for Teachers by Teachers In Need (TIN) Uganda. • Facilitator on Digital Pedagogy with ICT Teachers Association Uganda (ITAU) at American Center, Kyebambe Girls SSS in FortPortal for western region Uganda, Dr. Obote College Boro Boro Lira for Nothern Region Uganda.

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Mugisa Geofrey and SOLOMON TATWEBWA
6 years ago

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