| 1. | The electron clouds are clearly visible as blurs surrounding the invisible nuclei .
电子云就象环绕着看不见的核的一片云雾。 |
| 2. | Apart from x - rays which are emitted by excitation of electron clouds , most of the ionizing radiation come from the
射线是由受激发的电子云射出，而其他的电离辐射主要是由 |
| 3. | Rays are emitted from the nuclei of unstable atoms during radioactive decay , while x - rays are from the electron cloud as the result of electron excitation
射线是由不稳定原子核射出的，而射线则由受激发的电子云射出。 |
| 4. | Rays are emitted from the nuclei of unstable atoms during radioactive decay , while x - rays are from the electron cloud as the result of electron excitation
射线是由不稳定原子核射出的，而射线则由受激发的电子云射出。 |
| 5. | This bond is a weak electrostatic force of attraction between the pro ton of a hydrogen atom and the electron cloud of a neighboring electro - negative atom
氢键是氢原子核及其相邻的负电荷原子的电子云之间的一种微弱的静电吸引力。 |
| 6. | To give readers an example : the electron cloud of a hydrogen atom on earth is essentially distributed spherically around the hydrogen nucleus . but interesting things occur when we place a hydrogen atom in a strong magnetic field of 8 x 10
举例说，在地球上，氢原子的电子云呈球状分布在氢的核心内但当你把一颗氢原子放在8x10 |
