practice exam3

practice exam3 - 1) Which group 6A element is a metal? A)...

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1) Which group 6A element is a metal? A) tellurium and polonium B) sulfur C) selenium D) tellurium E) polonium 2) Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J) of an electron in the n = 4 level. __________ . A) -1.36 × -19 10 B) -5.45 × -19 10 C) -7.34 × 18 10 D) -1.84 × -29 10 E) +1.84 × -29 10 3) 21 03 [Ar]4s 3d 4p is the electron configuration of a(n) __________ atom. A) As B) V C) P D) Sb E) Sn 4) The largest principal quantum number in the ground state electron configuration of iodine is __________. A) 1 B) 4 C) 5 D) 6 E) 7 5) According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron. A) mass B) color C) momentum D) shape E) velocity 6) All of the __________ have a valence shell electron configuration 1 ns . A) noble gases B) halogens C) chalcogens D) alkali metals E) alkaline earth metals 7) 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; and
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(3) the first ionization energy __________. A) decreases, decreasingly, increases B) increases, increasingly, decreases C) increases, increasingly, increases D) decreases, increasingly, increases E) decreases, increasingly, decreases 8) The atomic radius of main-group elements generally increases down a group because __________. A) effective nuclear charge increases down a group B) effective nuclear charge decreases down a group C) effective nuclear charge zigzags down a group
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This note was uploaded on 04/07/2008 for the course CHE 1301 taught by Professor Klausmeyer during the Spring '08 term at Baylor.

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practice exam3 - 1) Which group 6A element is a metal? A)...

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