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

钴金属元素，原子序数27。

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

一种元素原子序数其原子核中质子数。

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

有118种已知元素，每种元素都按原子序数排列。

Bingo. Atomic number 61, come on down.

有了 原子序列61 乖乖现了。

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

元素周期所有化学元素按原子序数有序排列。

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，哪一个原子序数六，已知宇宙中最丰富元素之一？

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

原子序数为11，下面哪个元素符号来自拉丁词“natrium”？

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，他已经按照原子序数（原子核中质子数）正确地对元素进行了排序。

If you multiply that by the atomic number of " N" nitrogen, you get 14, which is the atomic number of...?

如果你乘以" N" (元素氮)原子数，就得到原子数14，也就...?

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

元素中质子数就它原子序数。

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

原子序数原子灵魂。 这就它成功之处。

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

“金”金一种黄色金属，化学家认为它原子序数为 79。

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

原子序数为水星元素也称为水银。

If not, it's atomic number 47.

如果不，它原子序数 47。

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

“金”（金）化学符号为Au，原子序数为79。

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

和质子数，这被定义为原子序数。

If you want to be technical, it has the atomic number 78 with the chemical symbol Pt.

如果你想成为技术人员，它原子序数为 78， 化学符号为 Pt。

As we move down into much heavier atomic numbers, we'll probably see more and more of these anomalies.

随着我们向下移动到更重原子序数，我们可能会看到越来越多这些异常现象。

We can describe how many protons and neutrons are in an atom’s nucleus using its atomic and mass numbers.

我们可以使用原子数和质量数来描述原子核中有多少质子和中子。

Chemists use it on x-ray defractometers because actually it is so lightweight it is actually got atomic number 4.

化学家在 X 射线衍射仪上使用它， 因为实际上它非常轻，原子序数为 4。