The size of an atom is only a few angstroms at most - there are 10 billion angstroms in 1 metre. This video also looks at the ...

The nucleus is very small compared to the atom as a whole: as electrons are even smaller, most of an atom is empty space the diameter of a nucleus can be 100,000 times less than the diameter of an ...

Now you know that atoms are really small and that there are huge numbers of them, but here are a few other atom facts you might find interesting. Where do atoms come from? Believe it or not, the atoms ...

Teacher: Well, atoms are the tiny particles that are too small to see, even with a microscope. So if people were the size of an atom, the entire population of the world would fit into a box about ...

When building an atom, pay close attention to the particles' electrical charges. Protons have a charge of +1. Electrons have a charge of -1. Neutrons are neutral, as its name implies. A stable ...