So what is the charge on a helium nucleus?
那么氦原子核的电荷量是多少呢?
We have a helium nucleus and one electron.
我们有一个氦核和一个电子。
And there he was able to identify the alpha particle as the helium nucleus.
他证实了,阿尔法粒子就是氦核。
So let's take two cases of shielding if we're talking about, for example, the helium, a helium nucleus or a helium atom.
所以我们来对屏蔽举两个例子,如果我们在讨论氦,举例来说一个氦原子核或者氦原子。
And there he was able to identify the alpha particle as the helium nucleus.
他证实了,阿尔法粒子就是氦核。
So what is the charge on a helium nucleus?
那么氦原子核的电荷量是多少呢?
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