" Iron" is also the elements with the chemical symbol Fe.

“iron”也是化学符号为 Fe（铁）的元素。

" Iron" is also the element with the chemical symbol Fe.

“铁”也是化学符号为 Fe 的元素。

We know ice is frozen water, but do you know the chemical symbol for water?

我们知道冰是冻结的水，但你知道水的化学符号吗？

Speaking of water, Sam, what was the answer to your question about the chemical symbol for water?

说到水，萨姆，关于水的化学符号的问题，你的答案是什么？

Speaking of water, Sam, what was the answer to your question about the chemical symbol for water.

说到水，山姆，关于水的化学符号的问题，你的答案是什么?

The chemical symbol for lead is Pb.

铅的化学符号是Pb。

Why is silver's chemical symbol Ag?

为什么银的化学符号是Ag？

The chemical symbol for magnesium is Mg.

镁的化学符号是Mg。

Fe is the chemical symbol for iron.

【symbol】铁是铁的化学符号。

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

“金”（金）的化学符号为Au，原子序数为79。

Coal's chemical symbol is C, and it is sometimes referred to as 'carbon'.

煤的化学符号是C，有时也被称为“碳”。

It has atomic number 13 and the chemical symbol Al.

它的原子序数为 13，化学符号为 Al。

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，它的原子序数为 78， 化学符号为 Pt。

First, we start with the chemical symbol for the nucleus, which is determined by its atomic number.

首先我们从核的化学符号开始，这取决于它的原子序。

Then on the bottom left of the chemical symbol, we write the atomic number, which will be the same for both Carbon nuclei, 6.

然后在化学符号的左下角，我们写下原子序数，这对于两个碳核都是相同的，6。

These rules apply not only to their formulas, that is, the chemical symbols that we use in equations, but also to their names, how we write and say them.

这些规则不仅适用于它们的公式， 即我们在方程式中使用的化学符号，还适用于它们的名称， 以及我们如何书写和说出它们。

If you're studying for a chemistry exam, one card can ask you what the chemical symbol for Neon is, and if you flip it over, it can also make sure you know what Ne represents.

如果你正在准备化学考试，一张卡片可以考查你氖的化学符号是什么，把它翻转过来，它也可以确保你知道 Ne 代表的是什么。

So for our carbon atom with six neutrons, we’d take the Carbon chemical symbol, a capital C, and write the atomic number, 6, in the bottom left and the mass number, 12, in the top left.

因此，对于具有六个中子的碳原子， 我们采用碳化学符号， 大写 C，并在左下角写下原子序数 6， 在左上角写下质量数 12。