Cobalt is a metallic element, atomic number 27 in the period table.

钴金属元素，数27。

(END VIDEOTAPE) (BEGIN VIDEO CLIP) AZUZ (voice-over): Ten-second trivia: Which element, which forms more compounds than any other, is represented by an atomic number of 6?

视频结束)阿祖兹(画外音): 10秒钟的小知识: 哪个元素，比其他元素能形成更多的化合物，而且它的数6?

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，科学家们就经知道铀内部的势能。铀元素期表中最重的金属，元素期表根据数和符号将化学元素分成行和列的图表。

Which of these elements, who's atomic number is six is one of the most abundant elements in the known universe?

这些元素中，哪一个的数，知宇宙中最丰富的元素之一？

An element's atomic number is the number of protons in its nucleus.

一种元素的数其核中的质数。

There are 118 known elements, each organized by atomic number.

有118种知的元素，每种元素都按数排列的。

With an atomic number of 11, which of these elements gets its symbol from the Latin word " natrium" ?

数为11，下面哪个元素的符号来自拉丁词“natrium”？

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

元素期表所有化学元素按数有排列的表。

It's a, hydrogen, the lightest of all gases which come at the very start of the periodic table, having the atomic number 1.

答案a选项——氢，它位于元素期表最开始位置的所有气体中最轻的元素，数1。

We have atomic number across the bottom.

我们在底部有数。

Their prediction is that nuclei containing 184 neutrons (which would have atomic numbers in the 120s) will hang around for sensible amounts of time-possibly as long as several million years.

他们预测，有184个中的核（数应在120-130之间）会稳定出现足够长的时间——也许几百万年。

Unbeknownst to Mendeleev, he had correctly ordered the elements by atomic number — the number of protons in the atomic nucleus.

门捷列夫不知道的，他经按照数（核中的质数）正确地对元素进行了排。

We would find since it has a different atom number it's going to have different ratio of average masses.

我们会发现，由于它的数不同，它的平均质量比也不同。

You can see on the periodic table that's going to be H. It's going 1 atomic number.

您可以在元素期表中看到 H。它的数为 1。

The atomic number is the number of protons.

数即质数。

The element whose atomic number is at Mercury is also called quicksilver.

数为水星的元素也被称为水银。

" Gold" gold is a yellow metal, atomic number 79 for the chemists out there.

“Gold”金一种黄色的金属，对于化学家来说，其数为79。

Well what happens as we increase the atomic number?

那么当我们增加数时会发生什么？

It is not quite however, the end of the story In the 1930s physicists discovered that radioactivity could in essence be reversed by bombarding atoms with subatomic particles to increase their atomic numbers.

这还不故事的结尾。在20世纪30年代，物理学家发现通过用亚粒轰击来增加它们的数，实际上可以逆转放射性。

Any two nuclei that have the same atomic number but different mass numbers are known as isotopes, with most elements having one isotope that is more common than the others.

具有相同数但质量数不同的任何两个核称为同位素，大多数元素具有比其他同位素更常见的一种同位素。