Everythingin the universeis either matter or energy. All matter is made of combinations of about one hundred basic building blocks, the chemical elements on the periodic table. Going a step further and breaking these elements down to...

As part of the General Chemistry Virtual Textbook, this site examines a list of related topics (in hyperlink format) on the atom and the Periodic Table of elements. Topics from light, particles, and waves to the Bohr model, quantum...

[Free Registration/Login Required] This flipchart introduces fifth graders to atoms and elements. Key concepts include atoms, parts of the atoms, elements, and the periodic table. Opportunities for student participation are included...

Explore how changing the numbers of protons, neutrons, and electrons affect the type of atom.

As part of the introduction to the Periodic Table of the Elements, young scholars will be introduced to the idea of atoms, molecules, and chemical reactions.

This lesson focuses on atoms and elements including what they are, the chemical symbols for elements, and the placement of elements on the periodic table. A link to a test is provided.

A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...

[Free Registration/Login may be required to access all resource tools.] Students learn about atoms and atomic structure in this collection of instructional videos, grade-level texts, and quick assessments.

[Free Registration/Login may be required to access all resource tools.] Atoms and how they are related to elements, and the particles that make up atoms.

[Free Registration/Login may be required to access all resource tools.] Atoms and how they are related to elements, and the particles that make up atoms.

Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!

This unit covers introductory concepts of mixtures and solutions. Students think about how mixtures and solutions, and atoms and molecules can influence new technologies developed by engineers. The first lesson explores the fundamentals...

Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test how the ideas work!

Students build atoms of elements 1-20. The entire set can be hung from the ceiling in order of the Periodic Table to be referred to throughout the Chemistry class/unit. This is helpful when teaching bonding and patterns of the Periodic...

A fun way to learn about the periodic table! This interactive table allows students to investigate the basic information of an element as well as explore group and family characteristics.

Find out if you know enough about atoms to build them. The goal of the activity is to build an atom of a particular element by dragging the correct numbers of neutrons, protons and electrons into the atom.

Explains the basics of atomic structure, from simple definitions to information about quantum theory. Accurate and helpful basics whether or not you need the more advanced information.

An overview of the differences between the metal and non metal groups. Includes a lot of information on the periodic table and has a plethora of graphs.

Web-based activity walks learners through the use of spectroscopy in determining the identity of atoms and molecules by defining the excited state of atoms, the frequencies of emitted photons, and atoms' ability to absorb them....

A resource provided to Grade 8 teachers to address the School District of Philadelphia's Core Curriculum on the topic of Matter. It covers properties and states of matter, elements, compounds, mixtures, atoms, and the periodic table....

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

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...

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

A video and a short quiz on the parts of an atom, the periodic table, and molecules.