Name _________________________________________________Student # _________________
Chapter 4.3 Review
Complete the passage below:
The arrangement of electrons in an atom is called the atom’s
(1)_______________________________________. Electrons in an atom tend to assume the
arrangement that gives the atom the (2)_________________________ possible energy. This
arrangement of electrons is the most (3)______________________________ arrangement and is called
the atom’s (4)__________________________________________.
Three rules define how electrons can be arranged in an atom’s orbitals. The
(5)________________________________ states that each electron occupies the lowest energy orbital
available. The (6)____________________________________ states that a maximum of 2 electrons may
occupy a single atomic orbital, but only if the electrons have opposite (7)________________________.
(8)_____________________________________ states that single electrons with the same spin must
occupy each equal-energy orbital before additional electrons with opposite spins occupy the same
orbitals.
Word Bank:
Aufbau principle
electron configuration
ground state electron configuration
Lowest
Pauli’s exclusion principle
Hund’s Rule
spins
stable
In the space below, write the electron configuration of the following elements:
9. sodium ____________________________________________________________________________
10. iron _____________________________________________________________________________
11. bromine ___________________________________________________________________________
12. radon _____________________________________________________________________________
In the space below, write the noble gas notation of the following elements:
13. cobalt ____________________________________________________________________________
14. silver _____________________________________________________________________________
Name _________________________________________________Student # _________________
15. tellurium __________________________________________________________________________
16 lawrencium ________________________________________________________________________
In the space below, write the orbital diagrams for the following elements:
17. Nitrogen __________________________________________________________________________
18. Iron _____________________________________________________________________________
19. Zirconium ________________________________________________________________________
Determine what elements are denoted by the following electron configurations:
20. 1s22s22p63s23p4 ___________________________________________________________________
21. 1s22s22p63s23p64s23d104p65s1________________________________________________________
22. [Kr] 5s24d105p3 ___________________________________________________________________
23. [Rn] 7s25f11 ______________________________________________________________________
Determine which of the following electron configurations are not valid:
24. 1s22s22p63s23p64s24d104p3 _______________________________________________________
25. 1s22s22p63s33p6 ________________________________________________________________
26. [Ra] 7s25f8 _____________________________________________________________________