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。铀元周中最重的金属，元周根据原子序数原子符号将学元分成行列的图。

We did not yet know that the chemical elements came from exploded stars, that everything you see around you was recycled from inside of stars.

我们还不知道学元来自恒星爆炸，不知道你周围所见的一切都再生于恒星内部。

Each chemical element absorbs light at specific frequencies removing a strip from the spectrum.

每种学元都会吸收特定频率的光线进而移除光谱上的特定区块。

Now, Element Lad's ability is the power to transmute chemical elements.

元少年的超能力转学元。

It's an expanding cloud of gas and dust, the remains of that dying star, and the colours are different chemical elements, so the orange is hydrogen, the red is nitrogen and those filaments of green are oxygen.

这个由气体尘埃组成的星云还在不断扩张，它一颗垂死恒星的残骸，不同的颜色代不同的学元，橙色示氢元，红色氮元，那些绿色的丝状物氧元。

While sunlight contains every wavelength, scientists discovered that every chemical element and compound contains a unique pattern of wavelengths that allows scientists to determine the composition of light sources.

虽然太阳光包含各种波长，但科学家发现每种学元合物都包含独特的波长模式，这使科学家能够确定光源的组成。

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学元的稳定晶体(所谓的季盐合物)可以被制造出来。

For this chemistry to finally produce life, the chemical elements needed to be able to assemble in isolation from the outside environment.

要使这种学物质最终产生生命，学元必须能够在与外界环境隔绝的情况下进行组装。

This was one of the observations that led a German chemist called Johann Debereiner to wonder if all chemical elements came in families.

正这项发现，使德国学家Johann Debereiner产生怀疑，否所有的学元都成族出现的。

Then she dashed over to a large machine that held many chemical elements and used the touchscreen to select several of them.

然后冲到一台放有很多学试剂的巨大机器前，她通过触摸屏挑选了一些试剂。

The tiny probe detects volatile chemical elements in concentrations that no one had thought possible this close to the sun.

这个微型探测器能探测到挥发性学元，在如此靠近太阳的地方，其浓度之高没有人想到的。

Matter is made up of atoms, the building blocks of chemical elements such as helium, oxygen, and hydrogen.

物质由原子构成，原子构成了氦、氧氢等各种学元。

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

元周所有学元按原子序数有序排列的。

These chemical elements are very light.

这些学元很轻。

Each of those dark lines is due to a specific chemical element.

这些暗沉的线条都代着特定的学元。

The ponds of hydrothermal springs provide an ideal environment in which the chemistry of life can get started: water, heat, and chemical elements rising from under the surface.

水、热学元从地下上升。

Phosphorus is the least common of the six chemical elements considered necessary to all living things.

磷所有生物必需的六种学元中最不常见的。

First of all, for this, you need to remove most of the chemical elements and leave basically just hydrogen and helium.

首先，你需要除去大部分的学元，基本上只剩下氢氦。

The researchers also studied about 9,000 years of data based on chemical element variants in tree rings and ice buildup tied to solar activity.

研究人员还研究了大约9000年的数据，这些数据基于树木年轮中的学元变异与太阳活动相关的冰的堆积。

Thanks to modern electronics, there's an overwhelming demand for some very particular chemical elements.

由于现代电子技术的发展，对某些非常特殊的学元的需求量非常大。