The periodic table is an organized display of all the chemical elements in order by atomic number.

元素周期表是所有化学元素按原子序数有序排列的表。

In a recent paper of his own he tried to calculate how many stable crystals incorporating four chemical elements (so-called quaternaries) might be potentially manufacturable.

在他自己最近的一篇论文中，他试图计算有多少含有四种化学元素的稳定晶体(所谓的季盐化合物)可以被制造出来。

Wendy says, " The sodium level is through the roof." " Sodium" is another word for salt; it's the chemical element Na.

温迪说：“钠含量已经很高了。 ” “钠” 是盐的另一种说法； 它是盐的意思。它是化学元素Na。

Even before World War Two, scientists had known about the potential energy inside uranium, the heaviest metal in the periodic table a diagram which groups the chemical elements into rows and columns according to their atomic number and symbol.

甚至在第二次世界大战之前，科学家们就已经知道铀内部的势能。铀是元素周期表中最重的金属，元素周期表是根据原子序数和原子符号将化学元素分成行和列的图表。