Fission refers to the process where one nucleus splits into two roughly equal nuclei.

裂变是指一个核分裂成两个大致相等的核的过程。

An atom's nucleus has a positive charge.

核带正荷。

Streaming out of a nuclear reactor of course!

当然得出现一个核反应！

In fission, the splitting of a nucleus generates energy.

在裂变中，核分裂产生能量。

The nucleus and the electrons going around the atom.

核绕着运动的。

Electrons orbiting the nucleus have a negative charge.

围绕核运行的带负荷。

What you're really doing is you're splitting the nucleus.

你实际上要分裂核。

The electric force between the nucleus and the electrons holds the atom together.

核的动将固定在一起。

In fact, it's about a hundred thousand times smaller.

具体地说，核比小十万倍。

At the center of an atom is its nucleus which has a positive electric charge.

的中心是它的核，它带有正荷。

In fusion, light nuclei merge — or " fuse" — to form one heavier nucleus.

在核聚变过程中，轻的核合并——或者“聚变”——形成一个较重的核。

Every element has a specific number of electrons surrounding the nucleus.

每一种元素的核周围都有一定数量的。

Outside the nucleus are electrons which have a negative charge.

核外面是带负荷的。

The type of atom depends on how many protons it has in the nucleus.

的类型取决于其核中有多少质。

And the nucleus is incredibly tiny compared tothe overall size of the atom.

尽管与整个相比，核小得不可思议。

This is where J.J. Thomson discovered the electron, and where Rutherford split the atom.

汤普森在这发现了，卢瑟福在这分裂出了核。

In a metal atom, the outermost electrons are only weakly attached to the nucleus.

在金属中，最外层与核连接微弱。

And iron is the first nucleus where you don't get any energy out of fusing it.

而铁是第一个不能从聚变中获取能量的核。

The atomic nucleus is densely packed with protons and neutrons bound by a powerful nuclear force.

核密集地包裹着由强大核所束缚的质中。

Electrons whiz around the nucleus, their negative charge attracted by the protons' positive charge.

绕着核旋转，它们的负荷会被质的正荷所吸引。