In this atoms worksheet, students will review the characteristics of elements, atoms, and isotopes. Then students will compare the difference between ionic and covalent bonds. Finally, students will balance a chemical equation. This...

High schoolers are introduced to the structure of an atom and Dalton's atomic theory through a short video and mini-lecture. They also take a look at the weight of mass and become familiar with the idea of quantum theory

Students demonstrate that isotopes of an element have different masses. They illustrate atomic mass and neutrons. The periodic table is examined in length. Display of a collection of atoms is surveyed.

Seventh graders, in groups, complete an Isotopes model and notice that atomic masses are decimal numbers. These masses are an average of all the isotopes of that element.

Students determine the average mass of a new element using masses from three isotopes. In this chemistry instructional activity, students explain what an isotope is. They discuss their importance and uses.

Students investigate where a new element would be located on the periodic table. In this isotope lesson, students find the mass of a new element, people mass. This number will be entered onto the periodic table of elements as the mass of...

Students experiment to show their knowledge of molecules and atomic structures.  In this chemistry review lesson students participate in an activity and then fill out a worksheet.

In this rocks worksheet, learners review the process of absolute dating of rocks and compare it to the relative dating process. This worksheet has 16 fill in the blank questions.

In this radiation instructional activity, students compare the effects of shielding on radiation on known isotopes. This instructional activity has 2 problems to solve.

In this atoms instructional activity, students review terms associated with atoms which includes isotopes, transmutation, and radioactive decay. This instructional activity has 11 short answer questions.

In this science worksheet, students identify and locate various science related vocabulary terms. There are 21 words located in the puzzle.

Students identify the periodic table trends and predict material properties. They also design and conduct simple experiments and test material properties. Finally, students compare and contrast material properties and that chemical...

Students practice drawing the atomic structure of several different elements. They complete critical thinking questions about atomic structure and compare the atomic mass units for different ions and isotopes of an element.

Students investigate the structure and parts of the atom, and learn about atomic mass and atomic number. They also explore the differences among solids, liquids, gases, and plasma.

Problem sets, tutorials, and activities related to biochemistry.

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.

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.

Description of the ideas and experimentation that led to quantum theory. Focus on electrically charged ions and isotopes.

Basic properties of the element Gadolinium Includes Bohr model.

This downloadable article addresses all aspects of nuclear energy. Visual charts make understanding of cycles and concepts easier. Most useful for older students and educators. PDF (requires Adobe Reader).

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will be asked to define atomic number, mass number and understand how isotopes differ from one another. They will be able...

Tutorial explains isotopes, atomic weight and how isotopes can be detected using mass spectrometry. Examples are given.

This overview of isotopes explores where isotopes come from and returning an atom to its normal state.

This site has a periodic table on it. When you click on each element, it brings up information about it. Site is organized, detailed, and helpful for learning.