atom

• We have made no reference to asymmetric carbon atoms .
  我们未曾涉及不对称碳原子。
• Carbon atoms provide the backbone of living matter .
  碳原子提供了生活物质的主链。
• Carbon atoms provide the backbone of living matter .
  碳原子提供了生命物质的骨架。
• The atoms are large, relative to their spacing .
  原子和它们的间隔相对而言是大的。
• The atoms of a liquid are usually united as molecules .
  液体的原子通常结合为分子。
• Cooking-salt consists of atoms of sodium and chlorine .
  食盐由钠原子和氯原子构成。
• An atom is stripped of all electrons by ionization .
  电离可剥掉一个原子的全部电子。
• When atoms split, the process is called "fission" .
  原子分裂时，其过程被称为“裂变”。
• They knew virtually nothing about the atoms themselves .
  事实上他们对原子本身一无所知。
• An electron from one of the atom shells is ejected .
  电子从原子的某一壳层中被弹射出来。