In 1931, at Columbia University, Harold Yuri discovered this isotope, which has two.
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。
Isotopes have the same chemical identity but different nuclear properties.
同位素有相同的化学特性,但是原子属性不同。
If they are found on the same place, it is iso-topos. These are called isotopes.
如果是在同一个位置,按照国际惯例,它们被叫做同位素。
A couple of other things about hydrogen: hydrogen also, like other elements, has isotopes and we already saw that in 1766, Cavendish isolated atomic hydrogen and enunciated some of its properties.
一些关于氢的东西:,氢气,就像其他元素一样,有同位素,人们在1766年就发现了这一点,卡文迪许分离出原子氢,并且阐述了它的一些性质。
We talked about isotopes, and whatnot.
我们已经讨论了同位素等。
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