When scientists confirm new elements, do these elements always fit in on the periodic table where scientists expect? The second video in a series of 15 discusses how the elements are organized on the periodic table. The resource includes information about groups, common properties, and systems of organizations.

Concepts

elements, the periodic table, atomic mass, atomic numbers, radioactivity, metals, non-metals

Show More Show Less

Additional Tags

science

Show More Show Less

Instructional Ideas

• Update the number of elements on the current periodic table as it has increased since the video was recorded
• Create cards with elements and their atomic masses and atomic numbers to have pupils try to organize and arrange

Classroom Considerations

• Knowledge of the difference between atomic mass and atomic number would be helpful, but it is not required

Pros

• Works well in both a traditional or flipped classroom
• Short length helps maintain learners' attention

Cons

• None

Common Core

RST.9-10.4 RST.11-12.4