The second type of radioactive decay is beta decay, which simply emits electrons.

第二种类型的放射性衰变是 β 衰变， 它只是发射电子。

Although it does open up a problem with double beta decay.

但这样也会造成双贝塔衰变的问题。

Yes. If they were that heavy, atoms could not beta decay.

是的 如果它们那么重 原子就不会贝塔衰变。

But electrons from beta decay have been found to have energies that vary greatly.

但是从beta衰变来的电子被发现到它们带有的能量差异很大。

It can continue to decay on its own, and when it does it undergoes beta decay.

它可以继续自行衰变， 当它发生时， 它会经历 β 衰变。

And beta decay is caused by the fourth fundamental force, the weak force.

弱力。

Unlike alpha and beta decay, no transmutation occurs in gamma decay.

不像前面两种，gamma衰变不是一种核嬗变。

Now, a unique part of beta decay is that no nucleons are emitted during the decay process.

现在，一个beta衰变的特别部分是当衰变产生时没有一个核子。

The second type of decay that can occur is beta decay, when an unstable nucleus emits a beta particle, which is just an electron.

第二种可能发生的衰变是 β 衰变，当不稳定的原子核发射出 β 粒子时，它只是一个电子。