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13 2006 AP® CHEMISTRY FREE-RESPONSE QUESTIONS
8. Suppose that a stable element with atomic number 119, symbol Q , has been discovered.
(a) Write the ground-state electron configuration for Q , showing only the valence-shell electrons.
(b) Would Q be a metal or a nonmetal? Explain in terms of electron configuration.
(c) On the basis of periodic trends, would Q have the largest atomic radius in its group or would it have the
smallest? Explain in terms of electronic structure.
(d) What would be the most likely charge of the Q ion in stable ionic compounds?
(e) Write a balanced equation that would represent the reaction of Q with water.
(f) Assume that Q reacts to form a carbonate compound.
(i) Write the formula for the compound formed between Q and the carbonate ion, CO32− .
(ii) Predict whether or not the compound would be soluble in water. Explain your reasoning. STOP
END OF EXAM © 2006 The College Board. All rights reserved.
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This note was uploaded on 10/01/2009 for the course OC 9876 taught by Professor Dq during the Spring '09 term at UC Merced.
- Spring '09