Fundamentals of Chemical Elements

The video tutorial, presented by Olesya Vladimirovna, explores 13 intriguing facts about chemical elements. It begins with a basic explanation of what chemical elements are, highlighting that they are distinct types of atoms. The tutorial covers various interesting facts, such as hydrogen being the most abundant element in the universe and the absence of the letter 'J' in element symbols. It also discusses the newest elements added to the periodic table and the prediction by physicist Richard Feynman about the potential discovery of 137 elements. The video concludes with a look at the most reactive and stable elements, as well as the most common elements in the human body.

What are the smallest particles that make up all objects around us?

• Compounds

• Molecules

• Atoms

• Cells

Which element is the first in the periodic table?

• Helium

• Carbon

• Oxygen

• Hydrogen

What percentage of the observable universe is made up of Hydrogen?

• 75%

• 90%

• 60%

• 50%

Which element is named after the Greek god of the Sun?

• Krypton

• Argon

• Neon

• Helium

Which letter is never used in the symbols of chemical elements?

• W

• Q

• J

• X

Which element is named after a Norse god?

• Thorium

• Freyaum

• Odinum

• Lokiium

How many chemical elements did Richard Feynman predict could be discovered?

• 118

• 137

• 150

• 200

Which element forms the most compounds?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

What is the most abundant element in the human body?

• Carbon

• Hydrogen

• Oxygen

• Nitrogen

Which element is the heaviest naturally occurring element?

• Lead

• Gold

• Uranium

• Platinum