Activity 2 in this module examines How do objects become charged? An investigation of where the electrons come from and where they go, when atoms become charged.

We will reintroduce the learners to the electromagnetic spectrum and visible light. We will talk about the states of electrons(ground and excited). The teacher will show a video link (Electrons in Atoms). We will then perform the science...

A learning module that investigates a powerful tool to observe and manipulate atoms called the scanning tunneling microscope.

ScienceWorld.com offers a brief biography and image of Austrian physicist and inventor of wave mechanics, Erwin Schrodinger.

How Bohr's model of hydrogen explains atomic emission spectra.

Article explains the experiments on the photoelectric effect and how these experiments led to the idea of light behaving as a particle of energy called a photon.

This lesson will explain that protons are positively charged particles having a mass of one amu and are found in the nucleus of the atom. It is 2 of 3 in the series titled "Subatomic Particles: The Proton."

Discover the life and contributions of Niels Bohr.

This lesson will define an ion and explain what happens if the number of electrons in an atom changes. It is 2 of 3 in the series titled "Ions."

This lesson will define an ion and explain what happens if the number of electrons in an atom changes. It is 1 of 3 in the series titled "Ions."

This lesson will explain that neutrons are particles in the nucleus that have no charge and a mass of one amu. It is 2 of 3 in the series titled "Subatomic Particles: The Neutron."

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

Brief explanation from Frostburg State University of valence bond theory and an explanation of what chemical situation creates a valence bond between two atoms.

This interactive activity from ChemThink takes a closer look at a covalent bond: how it is formed and how the sharing of two electrons can keep atoms together.

Advanced chapter of the book "The Molecular Biology of the Cell" describes and provides illustrations of our most current understanding of the chemical makeup of cells and their components. Explains in detail how electron activity keeps...

An electron traveling through the wires and loads of the external circuit encounters resistance. In this tutorial, the concept of resistance is introduced. For an electron, the journey from terminal to terminal is not a direct route....

Learn all about molecular structures in this easy-to-understand, audio book. See how valence electrons determine how atoms bond together, and look at the bonding inside some of the most common molecules around you.