front 1 Atomic Number | back 1 The amount of protons in an atom |
front 2 Atomic Mass | back 2 The weight of the protons and neutrons in the nucleus of an atom |
front 3 Proton | back 3 A positively charged particle |
front 4 Neutron | back 4 A particle with no charge |
front 5 Electron | back 5 A negatively charged particle |