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第三章:碱金属原子光谱 PowerPoint PPT Presentation


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第三章:碱金属原子光谱. 内容提要:. 1 、玻尔理论的局限性. 2 、第四章:碱金属原子光谱. 3 、原子实的极化和轨道贯穿. 目的要求:. 1 、了解新旧量子论的联系与区别. 2 、掌握碱金属原子的特点及其光谱规律. 3 、了解原子实极化与轨道贯穿的作用。. 重点难点:. 1 、碱金属光谱规律. 回主页. 教学内容:. 在前面一章中,我们主要研究了氢原子的光谱规律及玻尔的氢原子理论,利用玻尔的氢原子理论可以很好地解释氢原子的光谱现象及氢原子的结构问题。. 一、玻尔理论的局限性.

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第三章:碱金属原子光谱

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1

2

3

1

2

3

1



n=3121

1923


1925

n=1,2,

,n

l=0,1,2,

,n-1


1

mn


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41

41


22997

5893

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4.1

n


4.14.1



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ll

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nl

n

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45


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nl

l


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32

3-21

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1925

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1/2


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plps

j=l+s,l+s-1,l-s

s=1/2

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l=0j1/2

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3

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sl=0

l0j


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nls=1/2jj=l+1/2j=l-1/2


nll

lnnn0

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SPDF01232s+1jn

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s=1/2

4.3


P133


1264.7

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4s

4p

P


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Z=113s

4s

3s4s3p3d4s3p3p


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34


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2050

WillisEugeneLamb,1913-1955

n3nj

l=0jn

njl


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75

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1.

(1):

(2)

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Li:n=2;Na:n=3;K:n=4;Rb:n=5;Cs:n=6;Fr:n=7

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(2)


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:

3

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R

n=2


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Lin=1

n=22s,22S1/2

Lin=22S1/2

n=2,3,4,.


Ds=0.41

RLiLiRLi++,1.097107m1

LiLi


Li


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