Yes, I asked which is the lightest element in the periodic table.

是的，我问元素周期表中最轻的元素是什么。

Stars are mostly made up of hydrogen, the simplest and lightest element.

而来到地球。

Jupiter's spinning gasses attracted light elements, and overtime grew bigger and bigger in the process.

木星旋转的气体吸引了轻的元素，在这过程中成长得越来越大。

Denied. All right, for ten points, What is the lightest element on Earth, with no stable isotope?

驳回。接下来十分题，地球上没有稳定同位素的最轻的物质是什么？

Over billions of years, this stripped a lot of the lighter elements from the atmosphere, as well as all of the water.

在数十亿年的时间里，太阳风把许多较轻的元素和水剥离出大气层。

That's how the lightest, most abundant elements on the periodic table were created.

这就是元素周期表上最轻、最丰富的元素是如何产生的。

Jupiter is 84% hydrogen and almost 14% helium, the two lightest and most abundant elements in the Universe, rolled into a mammoth mass.

木星有84%的氢，差不多14%的氦，这两个是宇宙里最轻和最多的元素，组成它庞大的身躯。

The fusion reactions that make stars burn turn lighter elements into heavier ones by smashing nuclei together.

使恒星燃烧的聚变反应通过将原子核撞击在一起，将较轻的元素变成较重的元素。

To create the four latest elements, scientists had to smash lighter elements together using huge instruments like particle accelerators.

为了创造四种最新元素，科学家们不得不使用粒子加速器等大型仪器将较轻的元素粉碎在一起。

Old stars formed before the Universe was seeded with those elements, so they have more lighter elements in them than later-generation stars like the Sun.

老恒星是在宇宙被种下这些元素之前形成的，所以它们比太阳这样的后生恒星有更多的轻元素在里面。

Rather, it caused the atom to split, forming lighter elements in the process, and also releasing a tremendous amount of energy.

相反，它导致原子分裂， 在此过程中形成更轻的元素，并释放出巨大的能量。

These are heavy elements, and sank to the center of the planet when it was forming, leaving lighter elements like oxygen, silicon, and nitrogen to rise to the surface.

它们都是重金属，会在行星形成时下沉到行星的中心，让较轻的元素如氧、硅和氮上升到表面。

Nuclear reactions take lighter elements and transform them into heavier ones, and that causes stars to shine and ultimately explode, therefore enriching the universe with these heavy elements.

核反应将较轻的元素转化为较重的元素，导致恒星发光并最终爆炸， 从而使这些重元素丰富了宇宙。

There is a lot of heat now, ten billion degrees of it, enough to begin the nuclear reactions that create the lighter elements principally hydrogen and helium, with a dash (about one atom in a hundred million) of lithium.

这时候产生了大量热量，温度高达1000万摄氏度，足以引发核反应，其结果是创造出较轻的元素主要是氢和氦，还有少量锂（大约是1000万个原子中有1个锂原子）。

In the 1940s and 50s, Russian-American physicist George Gamow, developed a theory of the early universe that explained, among other things, why so many light elements, like hydrogen and helium, were observed throughout the cosmos.

在 1940 年代和 50 年代， 俄裔美国物理学家乔治·伽莫夫 (George Gamow) 发展了一种早期宇宙理论，除其他外，该理论解释了为什么在整个宇宙中观察到如此多的轻元素， 如氢和氦。