FIU Chemistry Lab Report

Chapter 4Name: __________________________
Panther ID: __________________________
DIRECTIONS: Answer all questions. Show all work where stated (remember your units and sig figs). Write
legibly. Circle your final answer.
1. Write electron configurations for each element (2 pts):
(a) Mg (b) P (c) Br
(d) Al
2. Write an orbital diagram for sulfur and determine the number of unpaired electrons (2 pts).
3. Write the electron configuration for Ge and identify the valence electrons and the core electrons (2 pts).
4. Use the periodic table to write an electron configuration for selenium (Se) (1 pt).
5. On the basis of periodic trends, choose the larger atom from each pair (if possible) (2 pts). Explain your
(a) N or F (b) C or Ge
(c) N or Al (d) Al or Ge
Page 1 of 2
Chapter 4
Name: __________________________
Panther ID: __________________________
6. Write the electron configuration and orbital diagram for each ion and determine whether the ion is diamagnetic
or paramagnetic (1.5 pts).
(a) Al3+
(b) S2– (c) Fe3+
7. Choose the larger atom or ion from each pair (1.5 pts):
(a) S or S2–
(b) Ca or Ca2+
(c) Br- or Kr
8. Arrange the following in order of decreasing radius (1 pt): Ca2+, Ar, Cl–.
9. On the basis of periodic trends, determine the element with the higher first ionization energy in each pair (if
possible) (2 pts):
(a) Al or S (b) As or Sb
(c) N or Si (d) O or Cl
10. On the basis of periodic trends, choose the more metallic element from each pair (if possible) (2 pts):
(a) Sn or Te (b) P or Sb
(c) Ge or In
(d) S or Br
11. Arrange the following elements in order of increasing metallic character: Si, Cl, Na, Rb (1 pt).
12. Arrange the following elements in order of decreasing first ionization energy: S, Ca, F, Rb, Si (1 pt).
13. Arrange these elements in order of decreasing radius: S, Ca, F, Rb, Si (1 pt).
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