他失去了一只胳膊回来了。
Returns the position plus or minus an integer.
返回索引值加或减一个整数后的索引位置。
Not knowing it would rain, he went out minus an umbrella.
不知道天要下雨,他出门没有带雨伞。
So here we have 3 minus l equals 0, because it's an s orbital, minus 1, so we have two radial nodes here.
这里我们有3减去l等于0,因为这是s轨道,减去1,我们有两个径向节点。
So, let's try another example here, and let's try a case now where instead of dealing with a neutral molecule we have an ion, so we have c n minus.
那么,让我们来试一下另外一个例子,这次不是一个中性原子,而是一个离子,氰离子。
It is of opposite charge and it exerts an influence, only that is minus to plus so that is going to give me a minus term here.
它具有相反的电性,所以它也会有影响,只有这个负值相对正值来说会起到减少的作用,所以这里将会引入一个负值的量。
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