Curated OER
Making Atoms
In this atoms worksheet, students determine an atoms based on its protons, and neutrons. Students determine the electron levels for the oxygen atom. This worksheet has 1 multiple choice, 4 fill in the blank, and 13 short answer questions.
Khan Academy
Khan Academy: Isotopes and Mass Spectrometry
Tutorial explains isotopes, atomic weight and how isotopes can be detected using mass spectrometry. Examples are given.
Frostburg State University
General Chemistry Online: Atoms & Ions
This site from the General Chemistry Online of the Frostburg State University provides a review of the history of atomic theory, the discovery of the electron, and the discovery of the nucleus. Details on weighing atoms, ion charges,...
Frostburg State University
General Chemistry Online: Atoms, Elements, and Ions Faq
Get the skinny on all things frequently asked about isotopes, subatomic particles and atomic theory. Find out what a "dalton" is or the difference between Na+ and Na.
Chem4kids
Chem4 Kids: Atoms
This site provides a detailed overview of atoms. Content explores an atom's structure, as well as what ions are, how atoms bond, what compounds are (including how to name compounds), and what isotopes are.
Concord Consortium
Concord Consortium: Stem Resources: Atomic Structure
Introduces learners to atomic models of the past and present, focusing on the orbital model and an explanation of its basis. Learners then have the opportunity to "make an atom" and contrast it with an ion, followed by an isotope. The...
Utah Education Network
Uen: Build an Atom
Students use cereal, marshmallows, and frosting to help them understand the concept of the atom, ion, and isotope, as well as the locations of subatomic particles in the atom, the concept of strong nuclear force.
Vision Learning
Visionlearning: Atomic Theory: Bohr and the Beginnings of Quantum Theory
Description of the ideas and experimentation that led to quantum theory. Focus on electrically charged ions and isotopes.
Estrella Mountain Community College
Online Biology Book: Chemistry I: Atoms and Molecules
In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.