化学元素是具有相同核电荷数的同一类原子的总称。
Chemical element is the general term for the same type of atoms with the same mass number.
通过引入“对势函数的有效核电荷”，讨论了氩原子场的物理特征。
By introducing "the effective nucleus charge number for the potential", the physical features of argon atom field have been discussed.
931年在哥伦比亚大学，哈罗德·尤里发现同位素，有两个核电荷数。
In 1931, at Columbia University, Harold Yuri discovered this isotope, which has two.
发现此关系式与主量子数和角量子数有关，而与核电荷数以及折合质量无关。
It is pointed out that the relation has something to do with the principal quantum number and the angular quantum number, but nothing to do with the nuclear electronic number and reduced mass.
稀有气体的一阶电离势提供了一个评价的标准，能衡量外层电子被有效核电荷束缚的强度。
The first ionization potentials of the noble gases provide a measure of how firmly the outer electrons are held by the effective nuclear charge.
第一个是有效核电量，或者说实际感受到的核电荷量，又或者我想我可以说就是，使它们保持在一起的,原子核的电荷量。
The first is this the z effective, or how much charge is actually in the nucleus that's felt, Z or the I guess we would say the z, how much the charge is on the nucleus that holds it close together.
第一个是有效核电量，或者说实际感受到的核电荷量，又或者我想我可以说就是，使它们保持在一起的,原子核的电荷量。
The first is this the z effective, or how much charge is actually in the nucleus that's felt, Z or the I guess we would say the z, how much the charge is on the nucleus that holds it close together.
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