| 例句 |
If one or more electrons be removed, the atom is said to be positively charged.如果原子失去了一个或多个电子，我们就说原子带正电荷。As these electrons are negatively charged, they will attempt to repel each other.由于这些电子都带负电荷的，所以会相互排斥。The electrons moved in planetary orbits.电子在绕原子核轨道上运动。Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子，即质子、中子和电子组成的，其中有些是由更小的叫做夸克的粒子构成的。Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电的质子、带负电的电子和称为中子的不带电粒子组成。Part of the sample is then bombarded by electrons.有部分样品后来被电子撞击。Under certain conditions, electrons can behave like waves rather than particles.在一定条件下，电子可以作波状运动，而不是粒子状运动。An atom itself is a complete whole, with its electrons, protons and neutrons and other elements.一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。The electron microscope uses a beam of electrons to produce images at high magnifications.电子显微镜利用电子束形成高倍影像。 |