It also has a mass number of 1 because its mass is almost exactly 1 amu.These two numbers are so important that sometimes they are included in certain notation.Free 5-day trial What is meant by the term 'radioactive'?

They all have the same atomic number because they're all carbon.

The top number is the mass number, which is the number of protons and neutrons, because both protons and neutrons have a mass of 1.

For example, when we are distinguishing the difference between three carbon isotopes, notice they all the sixes on the lower left of the symbol.

Those sixes represent the number of protons (or the atomic number).

Both have a 0 and -1, and either a beta symbol or an e is shown.

The reason an e is used is because a beta particle is really just a high-energy electron being emitted from a nucleus.

There are many misconceptions flying around out there when it comes to nuclear radiation, and the best thing you can do is educate yourself on the subject.

Who knows; someday you may be voting on whether a nuclear facility is built near you. Nuclear radiation comes from all kinds of different places.

Some homes are even equipped with radon detectors to warn you if the levels are getting too high. Beta decay occurs when a neutron turns into a proton and an electron is emitted.

It can also be represented a couple of different ways.

One of the main sources of alpha particles is the element radon, which is a gas found in many rocks.