CHEMISTRY 130 Practice Exam 2A

CHEMISTRY 130 Practice Exam 2A - Practice Exam 2A 1. Which...

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1 Practice Exam 2A 1. Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, m l , and m s ) A) 2, 2, -1, -1/2 B) 1, 0, 0, 1/2 C) 3, 3, 3, 1/2 D) 5, 4, -5, 1/2 E) 2, 3, 3, -1/2 2. [] 3 10 2 4 3 4 p d s Ar is the electron configuration of a(n) atom. A) As B) V C) P D) Sb E) Sn 3. The angular momentum quantum number of the last two valence electrons in an atom of lead is A) 1 B) 2 C) 3 D) 4 E) 5 4. In which of the following atoms is the 2s orbital closest to the nucleus? A) S B) Cl C) P D) Si E) The 2s orbitals are the same distance from the nucleus in all of these atoms 5. In general, as you go across a period in the periodic table from left to right: (1) the atomic radius____________ (2) the electron affinity becomes __________negative (3) the first ionization energy ________________ A) decreases, decreasingly, increases B) increases, increasingly, decreases C) increases, increasingly, increases D) decreases, increasingly, increases E) decreases, decreasingly, decreases
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2 6. Alkali metals tend to be more reactive than alkaline earth metals because __________. A) alkali metals have lower densities
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CHEMISTRY 130 Practice Exam 2A - Practice Exam 2A 1. Which...

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