課程名稱︰普通化學丙
課程性質︰系定必修
課程教師︰周必泰
開課學院：醫學院
開課系所︰醫學系
考試日期（年月日）︰981114
考試時限（分鐘）：110
是否需發放獎勵金：是，謝謝
（如未明確表示，則不予發放）
試題 :
General Chemistry Midterm Examination (Total Score 170)
1.Please write the formula and full name of atom 鎂，矽，鈷，鉀，氙，鉻，鍺
(15)
Example: 氧 O, oxygen
2.Explain Fermion and Boson, Is photon Fermion or Boson? (5)
3.Light has duality, namely particle like and wave like. Provide
experimental evidence for each case. (5)
4.In one dimensional wave motion for electron where portnetial energy is
assumed to be constant (=V), write down the corresponding Schrödinger
equation for a particle with mass m, and also write down the Hamiltonian.(5)
5.Briefly explain self-consistant field(SCF) method for obtaining the orbitals
of a polyelectronic atom. (5)
6.Defind hydrogen-like atom (3) and isoelectronic ion (2)
7.For the A4 family, CO2 gas is a precailing species on the earth, however,
SiO2 gas is rarely observed. Explain. (10)
8.Assume the molecular orbitals (MOs) of the OH radical result from the overlap
of a 2Pz (for oxygen) and 1S orbital of the hydrogen (the O-H bond lies along
the z axis) (15)
a. Draw the MO energy diagram for OH. Place the correct number of electrons
in the energy levels.
b.Estimate the bond order for OH.
c.Predict whether the bond order of OH+ is greater than, less than or the
same as that of OH. Explain.
9.OCN- and CNO- are isomers. Write down the most stable Lewis structure for
OCN- and CNO- (5). Determine and explain which one(OCN- or CNO-) is a more
stable form (5).
10. Write down the full name as well as explain the VSEPR model (5).
Draw the Lewis structures and geometry for the folling molecules:(10)
a. XeF2 b.SO2 c.I3- d.BeCl2
e.KrF4
What type of hybridization orbital for Xe in XeF2, center I in I3- and
Kr in KrF4. (5)
11.Draw MOs of B2 and O2 and Explain why both B2 and O2 are paramagnetic. (10)
Arrange the ionization energy of O2, O2-, O2+ by increasing trend. (10)
12.Assume that six electrons are confined to a one-dimensional box (V=0)
5.64*10^(-10) m in length. If two electrons can occupy each allowed energy
level, calculate thewavelength of electronmagnetic radiation neccessary to
promote the highest-energy electron into the first excited state. (10)
13.What is the probability of finding a particle in a one-dimensional box in
energy level n=4 between x=L/4 and x=L/2? (L is the length of the box). (10)
14.1 Debyb (1D) is equivalent to 3.336*10^(-30) Cm. The dipole moment and bond
distance for HF are measured to be 1.83D and 0.917Å, respectively.
Calculate the percentage of the ionic bonding for HF. (10)
15.For 1S orbital,Ψ=(1/√π)[(Z/a0)^(3/2)]e^(-Zr/a0) where a0=0.529Å, find
out the radius for the maximun probability for Li2+. (10)
16.Using Lewis structure, VSEPR and hybridization model to draw the structure
and orbital involved for O=C=O. Using thes drawing to point out the drawback
of LE model. (10)
17.我們考過"For hydrogen like atom, one cannot promote electron from 1s orbital
to 2s orbital by photon excitation". 那麼π電子可以被photon激發至π*嗎?試
解釋. (10)
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