※ 引述《appleM (天空不要为我掉眼泪)》之铭言： : 我 还是有点弄不懂 "The particle in a box" : 像是下面的两个题目 我不太清楚在问什麽 : 希望有人可以告诉我 : For a particle in a cubic box, how many degenerate energy levels have : energy equal to 14h^2/8mL, in which L s the lenth of the cubic box. : (a)1 (b)2 (c)6 (d)8 (e)12 En=(nx^2+ny^2+nz^2)h^2/8mL^2 nx,ny,nz 可以是(1,2,3) 再去排列组合一下 有6个 选c : (a)Discuss what happens to the energy levels for an eletron trapped in a : one-dimensional box as the length of the box increases. 能量会降低 根据En=n^2h^2/8mL^2 L变大En会下降 : (b)Which has the lowest(ground-state) energy, an eletron trapped in a one- : dimensional box of the length 10^(-5) or one with length 10^(-10)? 直接带进去上面那个En的公式 基态的话n代1 所以说10^-5的基态能量会比较小 : ------------------- : 另外还有一题 我不太清楚题意 : What is the maximum number of electron in an atom that can have the : quantum number of n=3, l=2? : n=3, l=2 指的是 3d轨域 : 题目的意思是说3d轨愈能容纳多少电子吗? (10个) : 还是说有3d轨域的原子总共可以容纳多少电子? (1s2s2p3s3p4s3d, 30个) 我觉得应该是total吧 --

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