Learn about Rutherford's discovery of the nucleus and the development of the nuclear model of the atom. [11:23]

Find out about Ernest Rutherford, the father of nuclear physics. He made a range of important contributions to this field and also won a Nobel Prize in 1908 for his work in chemistry. [1:28]

This lesson will explain the general format of a chemical equation including products, reactants, arrow notation, and states of matter. It is 1 of 2 in the series titled "Chemical Equation: Vocabulary."

This lesson demonstrates how to convert from grams to particles (molecules, atoms, ion). It is 1 of 2 in the series titled "Converting from Grams to Particles."

This lesson demonstrates how to convert from moles to particles (molecules, atoms, ion). It is 1 of 2 in the series titled "Converting from Moles to Particles."

This lesson demonstrates how to convert from particles to grams (molecules, atoms, ion). It is 1 of 2 in the series titled "Converting from Particles to Grams."

Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff. Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of...

Hank brings us the story of the electron and describes how reality is a kind of music, discussing electron shells and orbitals, electron configurations, ionization and electron affinities, and how all these things can be understood via...

Recognize the atomic number and mass number of an atom and how they are linked to the electrons, protons and neutrons of an atom. [2:05]

Scientists at the University of California Los Angeles have found a way to create stunningly detailed 3D reconstructing of platinum nanoparticles at an atomic scale. These are being used to study tiny structural irregularities called...

Neutron Stars are some of the strangest things in the Universe. Not quite massive enough to become black holes they are basically atoms as big as mountains with properties so extreme it's mind-blowing. And if you get too close to a...

A video lecture which explains the Bohr model of an atom, and explains how to create and use Bohr model diagrams to solve some practice problems. [11:51]

Get a quick overview of atomic theory, from early theories to modern understanding of the atom. [1:10]

A brief introduction to the definition of electron affinity in an atom. [0:27]

This in-depth video tutorial explains the rules for filling orbitals with electrons in an atom. [11:28]

Learn about the Bohr model of the atom where the electrons exist in energy levels or shells. [2:50]

Practice using probability to describe the location of electrons in the atomic model. [3:25]

Through a series of video lectures and some review questions, learn about the Bohr model of the atom and the periodic table of elements. [7:51]

Watch this video lesson introducing the atom, and learn about its unique structure. [3:58]

Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...

It's time to talk about one of the most awesome scientists: Marie Curie. She figured out ways to get an education despite limitations of her homeland, was the first woman to win a Nobel Prize, and was the first person to win two Nobel...

This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?...

How did we get here? Well, in terms of Atomic Chemistry, Hank takes us on a tour of the folks that were part of the long chain of other folks who helped us get to these deeper understandings of the world. From Leucippus to Heisenberg to...

Introduction to orbitals. Relates energy shell to rows and periods in the periodic table. [9:41]