Chapter 7 - Chapter 7 1. Elements D, E, and G have atomic...

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Chapter 7 1. Elements D, E, and G have atomic numbers Z, Z+1, and Z+2 respectively. E is a noble gas (not helium). Which statement is true? A. Elements D and G should form a compound which is a gas at room temperature and which has formula GD. B. Elements D and G should form a compound which is a solid at room temperature with formula GD. C. Elements D and G should not react with each other. D. Elements D and G should react to form a covalent compound with formula DG 7 . E. None of the above is a true statement. 2. Atom X is in Group IIA and atom Y is in Group VIIA. A compound formed between these two elements would have the formula A. X 2 Y B. XY 2 C. X 2 Y 7 D. X 7 Y 2 E. None of the above 3. Which of the following has the configuration of a noble gas? 1. S 2+ 2. Br 3. Si 4+ A. 1 only B. 2 only C. 1 and 2 D. 2 and 3 E. 1 and 3 4. The species which may not have the electron configuration 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 4d 1 is A. Sc 2+ B. Sc + C. Ca D. K 1 E. Ti 2+ 5. Which of the following is a true statement? A. The configuration 1
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This note was uploaded on 07/16/2011 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Spring '08 term at Penn State.

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Chapter 7 - Chapter 7 1. Elements D, E, and G have atomic...

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