原子可分为三类：极性、非极性和氢原子
Atoms can be divided into three categories: polar, non-polar and hydrogen atom
摘要：
自卢瑟福（1911）以来，物理学家和化学家普遍认为，在没有电场的情况下，原子核位于电子云的中心，原子不具有永久电偶极矩（EDM），因此自然界中不存在极性原子。事实上，这个想法是未经检验的假设。经过十年的深入研究，我们的实验表明，原子可以分为三类：极性，非极性和氢原子。碱金属原子都是极性原子。得到了钠、钾、铷、铯原子在基态的电火花放电（EDM）为：d（Na）=1.28 × 10 ~（-8）次方e.cm; d（K）=1.58 × 10 ~（-8）次方e.cm; d（Rb）=1.70 × 10 ~（-8）次方e.cm; d（Cs）=1.86 × 10 ~（-8）次方e.cm。除了碱原子和氢原子外，所有原子都是非极性原子。氢原子与其他原子截然不同。氢原子的基态是非极性原子（d=0），而激发态是极性原子，例如第一个激发态有一个很大的EDM：d（H）=3ea=1.59*10 ~-8次方（a为玻尔半径）. e.cm
英文摘要：
Since the time of Rutherford 1911) physicists and chemists commonly believed that with no electric field, the nucleus of an atom is at the centre of the electron cloud, atoms do not have permanent electric dipole moment (EDM), so that there is no polar atom in nature. In the fact, the idea is untested hypothesis. After ten years of intense research, our experiments showed that atoms can be divided into three categories: polar, non-polar and hydrogen atom. Alkali atoms are all polar atoms. The EDM of a Sodium, Potassium, Rubidium and Cesium atom in the ground state have been obtained as follows: d(Na)=1.28*10 to-8 power e.cm; d(K)=1.58*10 to-8 power e.cm; d(Rb)=1.70 *10 to-8 power e.cm; d(Cs)=1.86*10 to-8 power e.cm. All kind of atoms are non-polar atoms except for alkali and hydrogen atoms. Hydrogen atom is quite distinct from the others. The ground state in hydrogen is non-polar atom(d=0) but the excited state is polar atom, for example, the first excited state has a large EDM: d(H)=3ea=1.59*10 to-8 power e.cm (a is Bohr radius).
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