Let's take a look back at the elements platinum, iodine, aluminum, iron, and tungsten.

In this video, the concept of atoms and elements is introduced, explaining how everything we see is made up of tiny particles. The video also introduces the concept of chemical compounds, which are substances formed by the combination of...

In this section, I talk about elements, atoms and how they interact. I deal with two types of bonds: Covalent Bonds and Ionic Bonds. I also talk about pH, chemical reactions and metabolism.

Atoms and Elements: Defining Terms distinguishes the differences between an atom, an element, a molecule, and a compound.

Let's take a look back at the elements silver, hydrogen, phosphorous, germanium, and sulfur.

In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is...

Explore the significance of chlorine, a chemical element commonly found in everyday life. We learn about its atomic number, symbol, and physical properties. The video also delves into the dangers of chlorine, particularly in the form of...

This lesson will present the rules for writing the names and chemical formulae of elements and their allotropes.

Definitions included: chemical structure, ionic lattice, metallic lattice, molecule, covalent network, solitary atom,...

This program covers the very important topics known as atomic number, mass number, and isotopes. We begin by discussing the structure of the atom and how the atomic number is used to organize the periodic table. We discuss the mass...

In this video, we explore the various purposes and significance of zinc, a metallic element with atomic number 30 and chemical symbol Zn. We highlight the use of zinc in alloys, particularly brass, which is known for its strength and...

Discover the importance of calcium in our bodies and its various compounds and uses. From its role in strengthening bones and teeth to its applications in construction and water treatment, calcium proves to be a versatile and essential...

The number of protons in the nucleus of an atom.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

In this video Paul Andersen explains how elements and molecules are made of atoms. In a pure sample of a pure substance the average mass remains the same. If more than one atom is found in a molecule the ration of average masses...

The relationship between energy levels and strength of chemical bonds are discussed and demonstrated in this video. Students will learn that a chemical bond forms when electrons have lower energy and that less stable atoms tend to form...

This video provides an overview of the structure and notation of atoms, including the positively charged nucleus, negatively charged electrons, protons, neutrons, and the arrangement of electrons in energy levels. It also explains how to...

Everything we see and touch is made up of millions of tiny particles. This program is full of colorful examples showing the ways that matter is composed of particles. Vivid animations illustrate how matter consists of different types of...

This video provides an explanation on how to balance chemical equations using examples of simple word equations. It explains the importance of multipliers and subscripts in chemical equations and demonstrates how to use them to balance...

Silicon compounds | Silicates , earth crust |Natural occurance | Silica SiO2 | Polymorphism | Quartz | Japer |Onyz | Kieselguhr | Diatoms in sea |SiO2 preparation | oxidation of silica | orthosilisic acid Silicates,...

Why does changing just one proton in the nucleus of an atom make a different element? How can a single proton make such a huge difference in an element’s properties?



The simple answer is: The number of...

Group 14 elements are carbon (C), silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). Their valence electron configuration is unique and is shown by the symbol ns²np². This set-up shows that there are two electrons in the...

NOTE: animation error at 2:40 - the periodic table is supposed to be twisted clockwise, and not like it is shown in the video. The twisting enables the element Cs to appear on the extreme left and the element F to appear on the right. In...

What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the...

The basic ways elements combine to create compounds, fundamental to life as we know it. Chemistry - Atoms And Bonding - Learning Points. There are 92 naturally occurring elements. They fall into two categories: metals and non-metals....

Atomic Models: Centuries ago, people didn’t know exactly what was inside an atom, but they had some “ideas”. Around 400 BC, a Greek philosopher named Democritus came up with a theory that everything in the world was made of tiny...