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

钴是金属元素，原序数是27。

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

一种元素的原序数是其原核中的质数。

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

有118种已知的元素，每种元素都是按原序数排列的。

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

元素周期表是所有元素按原序数有序排列的表。

So, Feynman said, there can't be elements with atomic numbers higher than 137.

所以费曼说，不可能有原序数高于 137 的元素。

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

原序数为11，下面哪个元素的符号来自拉丁词“natrium”？

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，哪一个的原序数是六，是已知宇宙中最丰富的元素之一？

So the atomic number for carbon is six.

所以碳的原序数是六。

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

原序数为水星的元素也称为水银。

And the number of protons, this is defined as the atomic number.

和质数，这被定义为原序数。

The atomic number is the soul of the atom. It's what makes it it.

原序数是原的灵魂。 这就是它的成功之处。

And the atomic number is the number that you see up there.

原序数就是你在上面看到的数字。

If not, it's atomic number 47.

如果不是，它的原序数是 47。

The number of protons in an element is its atomic number.

元素中的质数就是它的原序数。

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

“金”金是一种黄色金属，家认为它的原序数为 79。

" Gold" (gold) has the chemical symbol Au and the atomic number 79.

“金”（金）的符号为Au，原序数为79。

The atomic number of oxygen is eight.

氧的原序数是八。

It has the atomic number 28.

它的原序数为 28。

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

门捷列夫不知道的是，他已经按照原序数（原核中的质数）正确地对元素进行了排序。

And the atomic number is, literally, just the number of protons in the element.

从字面上看，原序数就是元素中的质数。