Discover the significance of the atomic number and mass number. A video lesson describes the relationship between the two numbers and the subatomic particles. The instructor leads several examples that use the two numbers to determine...

Just because we can't see an atom doesn't mean we can't study it! The video examines the makeup of the atom. It explains the roles of the protons, neutrons, and electrons. 

Atoms may make up everything, but what are they made of? The narrator asks patrons at a local park what atoms are in an interview-style video. He then creates an atomic model and adds a neutron to it, opening the discussion to isotopes.

What does an atom look like? The instructor in a tutorial video models how to use the periodic table to determine the number of subatomic particles. He then uses the number of electrons to create an orbital diagram. Finally, Groves...

What's smaller than a kiwi seed? Atoms! Basic atomic structure is detailed for beginning chemists in a light-hearted animation. Protons and neutrons are explained as part of the nucleus, and so are electrons that encircle the nucleus....

After discovering plutonium, Glenn Seaborg was given the opportunity to determine its periodic symbol. Rather than going with the obvious Pl, he went with Pu as a joke. The designation was approved and is now on every periodic...

How much does your class know about subatomic particles? Module 13 in a 14-part series tests their knowledge of how to determine an atom's number of protons, neutrons, and electrons when given the atomic number and the mass...

Discover the relationship between mass number, atomic number, and the makeup of the atom. The video instructor explains how to determine the number of each subatomic particle from the atomic and mass number. She demonstrates multiple...

Review carbon-12 with the final video in a 15-part series. The video first shows how to use mass spectrum results to determine the molar mass of carbon. It then determines the number of protons, neutrons, and electrons in carbon-12.

A female narrator takes your class on a journey through the history of atomic theory. Not only are protons, neutrons, and electrons introduced but quarks and leptons are too. You will find this most appropriate for viewing in a high...

Turn to the dark side! Learners discover the facts about the matter you can't see and can't interact with, yet, it may make up 85 percent of the universe. The narrator explains what we know about dark matter, how it changes the behavior...

How are atoms structured? Viewers of the video first learn about atoms and atomic structure, including the nucleus and electron shells. The video then describes how atomic numbers and atomic masses are expressed on atomic symbols. You'll...

How do we know so much about the atom? Explore the evolution of the atomic model through a video from an informative chemistry lessons playlist. The narrator describes how our view of atoms and subatomic particles has changed from...

What's the best way to draw an atom? Well, that depends on what information you need to convey. Compare and contrast the atomic models of Bohr, Rutherford, and Lewis using a video from the JFR Science series. The resource shows the basis...

Sal does a phenomenal job introducing students to the atom, and the history that goes along with how we understand and view atoms today. Students are introduced to the atomic number, and how elements are organized into the periodic table...

The Rutheford plum pudding model of an atom, as well as the nuclear model, are the subject of a video that also includes an explanation of protons, neutrons, electrons, nucleus, atomic mass, atomic charge, and ions. 

Einstein didn't just discover relativity, he proved the existence of atoms in 1905 — more than 110 years ago. Discover how he did it and begin learning about basic chemistry: parts of an atom, atomic mass, atomic number, and how to read...

Part of a longer series, "In Search of Giants," this video covers the strong force that holds atoms together. A weak nuclear force can convert neutrons into protons and protons into neutrons, emitting electrons, positrons, or neutrinos...

No one was actually there to see the birth of the universe, but years of collaboration between physicists and mathematicians allow us to glimpse all but a fraction of a second of it. A narrated journey shows the phase changes...

Viewers learn about the history of our knowledge of atoms through the discoveries of eight different scientists: Mendeleev, Democritus, Dalton, Thompson, Schrodinger, Bohr, Rutherford, and Chadwick. 

Classical Cepheids are supermassive stars that are used to determine distances to galaxies within a local group. Sal explains why Cepheid variables occur, how they are used to determine distances, and the chemistry that creates the...

The strong force holds quarks together to form hadron particles, which include baryons and mesons. Common baryons, such as protons and neutrons, are the focus of a video that shows how they use the strong force. Then it explains the...

Looking for a great way to see what young chemists know about atomic structure? In the 14th and final installment in the states of matter series, learners put their skills to the test. The four-part question covers placement of...

The hydrogen in your body is exactly the same as the hydrogen in the sun. The video explains just how small an atom is and offers comparisons, such as the one above, to help facilitate understanding. It also presents the current model of...