We said that's the 1 s orbital.
我们说它是1s轨道。
And how many nodes do you see in the 3 s orbital?
那3s轨道有多少个节点呢？
So we can also look at this in terms of the 3 s orbital.
我们可以同样的来看下3s轨道。
So for a 2 s orbital, how many total nodes will we have?
对于2s轨道，有多少个节点？
And we call that, for this case, our sigma 2 s orbital.
对于这种情况，我们可以叫它sigma2s轨道。
So we expect to see two nodes right here in the 3 s orbital.
所以在3s轨道中我们预计能看到两个节点。
And yet, we know that the shape of the s orbital is spherical.
并且，我们知道S轨道是球状的。
And yet, we know that the shape of the s orbital is spherical.
并且，我们知道S轨道是球状的。
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