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

This video introduces atoms, molecules, and the big bang theory that proposes the creation of matter.

Atoms can (and do) bond constantly; it's how they form molecules. Sometimes, in an atomic tug-of-war, one atom pulls electrons from another, forming an ionic bond. Atoms can also play nicely and share electrons in a covalent bond. From...

Upon viewing the Exploring the Building Blocks of Matter video series, students will be able to do the following: Understand that the quest to better understand the building blocks of matter has transpired over the past several thousand...

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...

Did you know that geometry was invented by molecules? It's true! Until the first stars went supernova and littered all the elements across the cosmos, everything was simply spheres, from protons to stars. But then, under cooler planetary...

What is the difference between a molecule and a compound? What are the main types of chemical bonds? In this video, we will be answering those questions and more.

Learn the basics about Atomic Mass Units. The atomic mass is used to find the average mass of elements and molecules and to solve stoichiometry problems. Find out more in this video!

Learn the basics about Atomic Mass Units. The atomic mass is used to find the average mass of elements and molecules and to solve stoichiometry problems. Find out more in this video!

The explanation covers the electron configurations, quantum mechanics, and relativistic effects that determine these properties. This video is perfect for anyone curious about the science behind element properties....

This video covers:

0:21 - What a molecu
le is
1:11 - What a c
ompound is
3:11 - How to use brackets in a c
hemical formula
4:48

- What a mixture is
r/>This vid
eo is suitable for
:
- All tiers
- All exam...

Element and compound

In chemistry, we usually talk about atoms and molecules. When we introduce the term 'element', things get a little confusing. In this video, we will cover what an element is in chemistry and give you some examples.

This live-action video program is about the word element. The program is designed to reinforce and support a student's comprehension and retention of the word element through use of video footage, photographs, diagrams and colorful,...

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...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on molecular-level structures.


TERMS
Molecular-level structures - locations of atoms in
a molecule
Function - an activity or purp
ose for a...

We’ve all heard the phrase “opposites attract.” It may or may not be true for people, but it’s definitely true in organic chemistry. In this episode of Crash Course Organic Chemistry, we’re learning about electronegativity, polarity,...

Explore the cycling of carbon among carbon reservoirs! Then discover the importance of nitrogen, essential for amino acids and nucleotides, and learn about the nitrogen cycle! Expand details for table of contents. Table of Contents:...

Video on QM of Atoms which may clarify some concepts:    • The Quantum Mechanical model of an atom. W...  

Why do atoms combine to form molecules? The quantum mechanics of chemical bonds and chemistry....

A formula that shows the actual numbers of atoms of each element in one molecule of a compound.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

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...

This lesson will discuss the rules for writing the names and chemical formulae of covalent molecules and covalent networks. Definitions included: compound, ionic compound, covalent compound, covalent bond, electronegativity, molecular...

What exactly can we tell about an unknown substance by it's properties. We already know that a substance is matter that’s made of one kind of atom or molecule, and that has specific properties and that some substances are elements, which...

SUMMARY:

To make most complex structures in the universe like trees, and us, you need more than atoms. You need molecules. How do you go from atoms formed in the core of stars, to molecules that can lead to living...