MR. SURRETTE VAN NUYS HIGH SCHOOL
CHAPTER 15: MODERN ELECTRON CONFIGURATIONS
WORKSHEET SOLUTIONS
1. This rule determines that electrons fill up orbitals one available space at a time:
1A. Haufbau
2. Shorthand notation used to describe the location of electrons :
2A. electron configurations
3. This orbital fills up first with electrons:
3A. 1s
4. Seven orbitals can hold up to _____ electrons.
4A. 14
5. Chemists sometimes use _____ to simplify and shorten the location of electrons.
5A. abbreviated electron configurations
6. Electrons that do not take place in chemical reactions are called ______electrons.
6A. core
7. What is the electron configuration for fluorine?
7A. 1s22s22p5
8. What is the electron configuration for oxygen?
8A. 1s22s22p4
9. What is the electron configuration for carbon?
9A. 1s22s22p2
10. What is the abbreviated electron configuration for calcium?
10A. [Ar]4s2
11. What is the abbreviated electron configuration for astatine?
11A. [Xe]6s25d104f146p5
12. What is the abbreviated electron configuration for lead?
12A. [Xe]6s25d104f146p2
Questions 13 - 16. Draw orbital diagrams for the following atoms.
13. Sodium
13A.
14. Beryllium.
14A.
15. Argon.
15A.
16. Zinc.
16A.
CHAPTER 15: MODERN ELECTRON CONFIGURATIONS
QUIZ ANSWERS
1. This rule determines that every orbital can hold up to two electrons of opposite spins.
1A. Pauli
2. This orbital fills up first with electrons.
2A. 1s
3. The 4f subshell can hold up to _____ electrons.
3A. 14
4. What is the electron configuration for sulfur?
4A. 1s22s22p63s23p4
5. What is the electron configuration for silicon?
5A. 1s22s22p63s23p2
6. What is the electron configuration for chlorine?
6A. 1s22s22p63s23p5
7. Out of the following choices, this subshell fills up last:
(A) 1s (B) 2s (C) 3p (D) 3s (E) 2p
8. What is the electron configuration for fluorine?
8A. 1s22s22p5
9. What is the electron configuration for hydrogen?
9A. 1s1
10. What is the electron configuration for carbon?
10A. 1s22s22p2
11. The _____ rule determines that electrons fill up orbitals one available space at a time.
11A. Haufbau
12. 4s orbitals fill up before _____ orbitals.
12A. 4p
13. Seven orbitals can hold up to _____ electrons.
13A. 14
14. What is the electron configuration for potassium?
14A. 1s22s22p63s23p64s1
15. Provide the abbreviated electron configuration for neon.
15A. [Ne]
16. Provide the abbreviated electron configuration for magnesium:
16A. [Ne]3s2
17. Provide the abbreviated electron configuration for nickel:
17A. [Ar]4s23d8
18. Provide the abbreviated electron configuration for californium:
18A. [Rn]7s26d15f9
Questions 19 - 24. Draw orbital diagrams for the following elements.
19. Manganese
19A.
20. Aluminum
20A.
21. Silicon
21A.
22. Beryllium
22A.
23. Phosphorous
23A.
24. Chromium
24A.
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CHEMISTRY