关于原子结构 光谱

题目

关于原子结构 光谱
1.光最长的波长用来破裂 Cl2中的Cl-Cl键是495nm
试计算Cl-Cl的最低能量.（怎么找最低能量?）
2.氢原子的光谱 中特定的line和电子转移从n=6到n=2有关
试说明：
在一样的电子转移的情况下（6-2） He+ 能量 大于 corresponding transition in H atom 氢原子
(A certain line in the spectrum of atomic hydrogen is associated with the electronic transtition in the H aton from the sixth evergy level to the sexond energy level
1.account for the observation that the amount of energy associated with the same electronic transition(n=6 to n=2)in the He+ ion is greater than that associated with the correspinding transition in the H atom)
翻译不太准确 请能看懂的大师指点

答案

1)
DeltaE=E(bonding)－E(antibonding)＝E(photon)=hf=hc/lamda(wavelength)
h:Planck constant
c:speed of light
2) Because E(n)=-RhZ^2/n^2
for H atom Z=1,but for He+ Z=2.
so for H,and DeltaE=Rh(1/4-1/36)
but for He+,DeltaE=4Rh(1/4-1/36)