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Organizing Atoms And Electrons: The Periodic Table

28 minutes 27 seconds

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As scientists discovered more and more chemical elements, they began developing systems to organize the elements by their chemical properties, leading to the modern periodic table. Through its organization, the periodic table makes clear the underlying chemical and physical trends among the elements. The periodic table is being continually updated even today as scientists strive to create new elements in laboratories. Part of the series Chemistry: Challenges And Solutions.

Media Details

Runtime: 28 minutes 27 seconds

Topic: Mathematics, Science
Subtopic: Chemistry, Mathematics, Science Methods
Grade/Interest Level: 10 - 12
Standards:

Release Year: 2013
Producer/Distributor: Annenberg
Series: Chemistry: Challenges And Solutions
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Person in a science lab working with complex machinery. Caption: There is almost no limit to the ways we transmute matter.

Plastic tube containing clear, pebble-like objects is attached to a larger tube. Caption: The gas is filling up a constant volume.

Hollow glass tube with roughly diamond shaped object in the center surrounded by glowing light. Caption: you get the characteristic color of this purplish-blue.

The periodic table of elements. A color-coded grid with letters representing each element. Caption: Each row of the table represents a pattern of chemical properties

Geometric illustration of atoms. Caption: So here we've drawn in all the atoms.

Gloved hand holding an electronic chip with a pair of tweezers. Caption: they call it an artificial leaf.

Person in a lab setting filling a container from a faucet. Caption: A calorimeter is simply anything used to measure heat.

Two glasses with colored liquid in them. One glass has a person holding a cylindrical electronic device in the liquid. Caption: and check the parts per million of solutes.

4Fe+3O2+4H2O converts to 2Fe2O3*2H2O. Caption: This causes the iron to become a hydrated iron oxide,

Person in a science lab. One beaker contains an orange liquid, and one beaker contains a green liquid. Caption: It's orange. That means its pH is 5.