Search results for “comment les éléments sont-ils placés dans le tableau périodique”

What Are The Most Mysterious Places On Earth?

There are places on planet earth that very few humans have explored. Let's look at some of those mysterious destinations! Follow Life Noggin! Facebook: https://www.facebook.com/LifeNoggin/?ref Instagram: https://instagram.com/lifenoggin/ Twitter: https://twitter.com/lifenoggin Official Website: htt

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

The places of worship of religions

With Judaism, Christianity, Islam and Hinduism, there are four world religions, and each religion has its own place of worship. But what is actually behind the terms synagogue, church, mosque and temple? Author: ZDF/Sunday/Harald Hamm/Marietta Pauli/Jochen Schmidt Translation and dubbing: alugha

The Elements: Forged in Stars

Fusion, which occurs when atomic nuclei combine to form new elements, is extremely powerful. All the stars in the universe, including the Sun, are nuclear furnaces fueled by fusion. Through fusion, stars are responsible for forming all the naturally occurring elements heavier than hydrogen and heliu

08 Salt formation from the elements

Sodium reacts with chlorine to form a white salt, sodium chloride. An ionic bond of cations and anions is formed. It is explained how the PSE helps to determine the charges of the ions and to establish the ratio formula from them. Original: "Wolfgang Dukorn" Original: German. All translations in t

Radiation in public places

Radiation is everywhere, it always surrounds us. In some places, however, more than in others. What does it look like in a marketplace, for example? Vicky and Tim are out and about in the city and explain to us what kind of radiation they encounter and where there are risks - and where there are not

How Does Tourism Change People and Places?

For more Science Videos: https://lt.org/ * The classic image that tourists and travelers should only leave footprints and take photos is put into question by CARSTEN WERGINs academic investigation of how tourism has changed the world. * In this video, he describes his interest in the question of ho