Chapter 13 Review: Quantum Number/Electron Cloud Questions

Instructions: Write answers on your own paper.

1. (a) What is electromagnetic radiation? (b) Give examples of forms of electromagnetic radiation.

2. (a) In what form does electromagnetic radiation travel through space? (b) In what form are they transferred to matter?

3. (a) How is an excited atom produced?

4. (a) What is an electron cloud? (b) What properties does it give an atom?

5. (a) What are the four quantum numbers in the quantum theory and what does each indicate?

6. (a) What is the shape of an s orbital? (b) How many s orbitals can there be in an energy level? (c) How many electrons can occupy such an orbital? (d) What characteristic must these electrons have? (e) Which is the lowest energy level having an s orbital?

7. (a) What is the shape of an p orbital? (b) How many p orbitals can there be in an energy level? (c) How are they arranged with respect to one another? (d) Which is the lowest energy level having p orbitals?

8. (a) May two electrons in the same atom have exactly the same set of quantum numbers? (b) May two electrons occupy the same space orbital in an atom? (c) Under what conditions?

9. Distinguish between an atom in its ground state and an excited atom.

10. (a) What is an electron pair? (b) What is an octet?

11. Derive the relationship between λ and E for electromagnetic radiation.

12. Why must energy transitions within an atom occur in definite amounts rather than as a continuous flow?

13. (a) How many d orbitals can there be in an energy level? (b) How many d electrons can there be in an energy level? (c) Which is the lowest energy level having d orbitals?

14. ( a) How many f orbitals can there be in an energy level? (b) How many f electrons can there be in an energy level? (c) Which is the lowest energy level having f orbitals?

15. Complete the electron configuration notation in the third series: Na, Mg, AI, Si, P, S, CI, Ar.

16. How many electron pairs are there in the outer shell of each of the following atoms: (a) carbon; (b) krypton; (c) oxygen; (d) arsenic; (e) iodine?

17. Which of the atoms in Question 16 has an octet as an outer shell?

18. How many energy levels are partially or fully occupied in the mendelevium atom?

19. Which sub-level's of the 3rd energy level are filled (a) in the element argon; (b) in the element krypton?