Section Experiment 10: Electronic Transitions Post lab Questions 1. Which metal

Question

Section Experiment 10: Electronic Transitions Post lab Questions 1. Which metal atom emitted photons with the... a. Longest wavelength? b. Second-lowest energy? c. Highest energy? d. Second-shortest wavelength? 2. The metal compounds you used in this experiment are ionic compounds. The metal and chlorine atoms are ions that h For each of the metal com on the metal and chlorine ions: Compound Metal lon Charge a. CaCa b. CuCl c. FeCl d. KCI e. MnCl f. SnCl g. Lici h. NaCl Chlorine Atom Charge What would the chemical formula be for an ionic compound that combines aluminum (Al) and chlorine? (HINT: lab has a periodic table by the east door.) 3. The

Explanation / Answer

1. d. Second shortest wavelength
compound      metal ion charge         chloride atom charge
a.CaCl2         Ca^2+                          Cl^-
b. CuCl2        Cu^2+                          Cl^-
c. FeCl2          Fe^2+                        Cl^-
d. KCl             K^+                           Cl^-
e. MnCl2         Mn^2+                      Cl^-
f. SnCl2         Sn^2+                         Cl^-
g. LiCl        Li^+                             Cl^-
h. NaCl          Na^+                          Cl^-

3. AlCl3

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