課程名稱︰普通化學丙
課程性質︰物治系 醫技系 公衛系 職治系 護理系 藥學系 大一必帶
課程教師︰劉銘璋
開課學院：理學院
開課系所︰化學系
考試日期（年月日）︰10/04/2013
考試時限（分鐘）：10 分鐘
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
General Chemistry 10/04/2013
1. Which of the following statements is (are) true?
I . An excited atom can return to its ground state by absorbing
electromagnetic radiation.
II . The energy of an atom is increased when electromagnetic radiation is
emitted from it.
III. The energy of electromagnetic radiation increases as its frequency
increases.
IV . An electron in the n = 4 state in the hydrogen atom can go to the n = 2
state by emitting electromagnetic radiation at the appropriate
frequency.
V . The frequency and wavelength of electromagnetic radiation are inversely
proportional to each other.
(a) II, III, IV, (b) III, V, (c) I, II, III, (d) III, IV, V, (e) I, II, IV
○
2. Consider the following representation of a 2p-orbital: ○
Which of the following statements best describes the movement of electrons
in a p-orbital?
(a) The electrons move along the outer surface of the p-orbital, similar to
a "figure 8" type of movement.
(b) The electrons move within the two lobes of the p-orbital, but never
beyond the outside surface of the orbital.
(c) The electrons are concentrated at the center (node) of the two lobes.
(d) The electrons are only moving in one lobe at any given time.
(e) The electrons movement cannot be exactly determined.
3. Which of the following electron configurations is correct?
(a) 2 10 1
Ga: [Kr]4s 3d 4p
(b) 2 5
Mo: [Kr]5s 4d
(c) 1 10
Ca: [Ar]4s 3d
(d) 2 10 7
Br: [Kr]4s 3d 4p
(e) 2 4 10 3
Bi: [Xe]6s 4f 5d 6p
4. Which of the following statements is false?
(a) An orbital can accommodate at most two electrons.
(b) The electron density at a point is proportional to ψ2 at that point.
(c) The spin quantum number of an electron must be either + 1/2 or - 1/2.
(d) A 2p orbital is more penetrating than a 2s; i.e., it has a higher
electron density near the nucleus and inside the charge cloud of a 1s
orbital.
(e) In the usual order of filling, the 6s orbital is filled before the 4f
orbital.
5. Choose the element with the highest ionization energy.
(a) Na, (b) Mg, (c) Al, (d) P, (e) S