Zusammenfassung der Ressource
Fundamental ideas
- Atomic Structure
- The nucleus contains protons and neutrons
- protons are positive
- and neutrons negative
- key words
- Proton
- neutron
- atomic number
- mass number
- all elements contain the same number of protons called the atomic number
- Atoms, elements and compounds
- Keywords
- Element
- Atom
- group
- Nucleus
- electron
- compound
- elements
- ...are made up of atoms
- with a tiny nulceus surronded by electrons
- when atoms join with atoms they make compounds
- are arranged in groups on the periodic table