Zusammenfassung der Ressource
The Atom
- Sub-Atomic Particles
- Proton
- In the nucleus
- 1.a.m.u
- +1
- Neutron
- 1 a.m.u
- In the nucleus
- 0
- Electron
- 1/1840 a.m.u
- Orbiting the nucleus
- -1
- The atomic number of an atom is the number of
protons it has in it's nucleus
- Mass number = number of protons + neutrons
- Isotopes are atoms of the same element, which have different numbers of neutrons