Search results for “qu'est-ce qu'une période dans le tableau périodique”

Invention of the periodic table

In the mid-19th century, the nature of the elements was still largely unknown. In 1869, Russian chemist Dimitri Mendeleev develops the periodic table, which is still valid today with slight adjustments. Authors: ZDF/Terra X/T. Schrader/J. Koester/F. Steinhardt/Caligari/Moods in Pictures/Maximilian

The (truly) Periodic Table.

The (truly) Periodic Table is an animated film that tells you everything you ever wanted to know about the Periodic Table: why it has this shape, how the elements are organized, how they combine or ... not really! Produced by the Science Office for the University of Aveiro, in the framework of the

CE-e Toy Robot sings about toy safety

As part of the on-going "European Toy Safety" campaign, Directorate General Enterprise and Industry of European Commission has launched a new video informing consumers how to both buy safe toys and use them safely. The video features CE-E, a singing robot, to introduce children to the idea of toy sa

08 Element Symbols

In the periodic table there are a lot of element symbols with different numbers. The most important ones are explained and how they can be used to infer the structure of the corresponding atom. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugh

08 The PSE

In this screencast, nothing is explained (except for a very short group and period), but you are given the task of thinking about what you have learned so far. Because that's more than you might think! Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by t