D.C.United won the M.L.S.Cup, the league championship, on the strength of a Most Valuable Player performance by Olsen.
VOA: special.2010.06.02
And this spin magnetic quantum number we abbreviate as m sub s, so that's to differentiate from m sub l.
这个自旋磁量子数我们把它简写成m下标s,以和m小标l有所区分。
STUDENT: PROFESSOR: Oh, I'm sorry. So it's n minus l minus 1.
学生:,教授:不好意思,这是n减去l减去1.
D.C.United won the first two M.L.S.championships.
VOA: special.2010.06.02
So I'm not even willing to use the L words in describing what it is we have." Right?
甚至不愿意,用爱来表达我们之间的关系?
At 3.32 a.m., the time the deadly quake struck last April 6, a requiem was played in L'Aquila's central Piazza Duomo.
VOA: standard.2010.04.06
Why didn't they keep right on going with G, H, I, J, K, L, M, N, O, P?
为什么他们不接着写下去呢,按照字母表
Judge M.L.Tahiliyani said Thursday he will accept the detailed confession made by 21-year-old Mohammad Ajmal Kasab, regarding his role in last year's terror attacks in Mumbai.
VOA: standard.2009.07.23
n l m s Once we have chosen a certain mix of n, l, m and s, it is used once for that particular atom.
一旦我们选定了一组量子数,它就只能被一个固定原子所有。
Yesterday, on M.L. King Day, I had the privilege of being on at least four radio programs about this new book I have out called A Slave No More, some of them quite terrific.
昨天是马丁·路德·金的纪念日,我有幸被超过四家电台的问答节目邀请去,介绍我最新出版的一本书《无奴之国》,有些问题很有深度
It says, right. If j is-- well it says until j is at the less than the length of l-- it says, if min value is bigger than the thing I'm looking at I'm going to do something, all right?
只要j比长度l小,如果MinVal比我要找到元素大,我就要做些什么了,我们来遍历?
In contrast, if we're taking the wave function and describing it in terms of n, l, m sub l, and now also, the spin, what are we describing here?
相反,如果我们考虑一个波函数,然后用n,l,m小标l,还有自旋,我们描述的是什么?
We didn't just need that n, not just the principle quantum number that we needed to discuss the energy, but we also need to talk about l and m, as we did in our clicker question up here.
我们不仅需要n,不仅要这个可以,决定能量的主量子数,还需要m和l,就像我们做这道题这样。
And the complete description, as I said, n l m is from n l and m.
我说过完整的描述,需要。
So let's just think exactly what this means, and that means that if we take away function and we define it in terms of n, l and m sub l, what we're defining here is the complete description of an orbital.
让我们来考虑一下这是什么意思,这是说如果我们不考虑波函数,而是用n,l,m下标l来定义它,我们定义的,是一个轨道的完整描述。
Just by n, l, m, s is inadequate.
仅仅靠n,l,m,s是不够的。
No, we can't. Because if l equals 1, we can not have m sub l equal negative 2, right, because the magnetic quantum number only goes from negative l to positive l here.
不行,因为如果l等于1,ml的值不可能等于-2,对吧,因为磁量子数的值,这时只能从-1到1
So, if we think of just an example, 2 we could say that 4 l equals 2, what would be our lowest value of m sub l?
举个例子,如果我们说l等于,那m小标l,最小值是多少?
And in order to label the various orbitals, as he called them, m he introduced two more quantum numbers, l and m.
为了给他所说的不同的轨道,标号,他又另外引进了两个量子数,l和。
s We are back over to E as a function of n, l, m and s, only we got there through this other torturous route.
我们回到将E作为函数n,l和,只要我们解决了这个烦人的路径。
So the allowed values for m sub l 0 are going to be negative l, all the way up to 0, l and then up to positive l.
所以m小标l的可能值,是从负l,一直到,然后到正。
So, our next level up that we can go is going to be the n equals 2 energy level, but we also have an l and an m value, 0 so our lowest l is going to be a there.
所以下一个能量,是n等于2的能级,但我们还有l和m的值,所以我们最低的l等于。
So finally, if we talk about our last example of when n is going to be equal 2, l -1 and then minus 1 for m.
最后我们要讲的,这个例子,是n等于2时,等于1,we,can,have,2,,1,for,l,而m等于。
So when we talk about a wave function squared, n l m he wave function, any one that we specify between n, l and m, at any position that we specify based on r, theta, and phi.
一个波函数,的平方时,对特定,特定位置r,theta,phi波函数,取平方,如果我们取平方。
m And the third one is called m, l it's also m sub l.
第三个量子数叫做,也叫做m小标。
PROFESSOR: OK. We can have n 4, l 3, and then, sure, we can have m sub l equal negative 2 if l equals 3 What's the second value of l that we can have?
教授:嗯,我们有n4,l3,然后我们有ml等于-2,如果l等于3,l可以有的第二个值是多少?
Yup. So m sub l could equal 2 negative 2, negative 1, 0, 1 or 2.
嗯,m下标l可以等于,2,-1,0,1,或。
So we could have five values of m sub l.
所以它可以取5个值。
Again, the reason for that is because the energy only depends on the n value here, it doesn't depend on l or on m.
因为,能量,只和n的值有关,与l和m的值无关。
But you can look at manuscripts of the early eleventh century and see people singing Ps and Ls and Os and Ms and things like that.
但是大家可以看看,十一世纪初的手稿,可以看到那时有人在唱P,以及L,O和M之类的
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