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Periodensystem
Ordnung der Elemente
Periodic Table – System of the Elements
Periodic Table – System of the Elements
Dauer: 27:33
1. Short History of the Periodic Table of Elements (PTE)
Dauer: 03:46
1.1 Beginnings
Dauer: 01:38
1.3 Mendeleev and Meyer
Dauer: 02:03
2. Atoms Are Divisible – Structure of Atoms
Dauer: 05:02
2.1 Protons‚ Neutrons and Electrons
Dauer: 03:17
2.3 Electron Shells
Dauer: 01:40
3. System of the PTE
Dauer: 04:16
3.1 Groups and Periods
Dauer: 04:11
4. PTE and Atomic Structure
Dauer: 05:13
4.1 Valence Electrons and Reactivity
Dauer: 02:09
4.3 Mass Number
Dauer: 02:58
5. PTE Offers Hints at Some Properties of the Elements
Dauer: 06:04
5.1 Arrangement of Elements
Dauer: 02:00
5.3 Differences – Alkali Metals and Inert Gases
Dauer: 02:17
5.4 Most Reactive Element: Fluorine
Dauer: 01:40
