Question

Question #7d64f

Answer 1

See explanation.

Explanation:

Hyphen notation is simply a way we have of naming isotopes.

In order to use hyphen notation properly, you must

• start with the name of the element
• add a hyphen
• add the mass number of the isotope

Let's take, for example, `""^14"C"`, one of the stable isotopes of carbon, `"C"`. The hyphen notation for this isotope would be

carbon-14

Here you have the name of the element written first, followed by the hyphen and by the mass number, which in this case is `14`.

Another example could be `""^238"U"`. Here you are dealing with an isotope of uranium, `"U"`, which has a mass number equal to `238`. This means that its hyphen notation will be

uranium-238

Check out this video for more examples