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 ...

This symbol shows that chlorine has 35 particles in the nucleus (protons ... as the number of electrons and protons are equal in a neutral atom, chlorine also has 17 electrons.

After tracing many particles and examining the patterns, Rutherford deduced that the atom must have nearly all its mass, and positive charge, in a central nucleus about 10,000 times smaller than ...

We know that matter is made up of particles called atoms and that an element is a substance that is made up of only one kind of atom. But what are atoms made up of? A very important part of ...

Join six leading experts to find out everything we know about the subatomic universe. Take a deep dive into the building ...

Proton accelerator used by Walton & Cockroft to split the atom. Walton sits in the small observation cabin and watches the produced alpha particles on a fluorescent screen. Credit ...

Scientists have submitted proposals for a new £17billion atom-smasher to help solve the ... It will be capable of accelerating particles to almost the speed of light before crashing them into ...