yttrium

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Explore an interactive periodic table of the elements

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Highway Night Traffic Portland, drive, driving, car, automobile.

What's the Difference Between Speed and Velocity?

Chemical equations Chemical reactions chemistry

How Do You Balance a Chemical Equation?

Illustration of molecules. (molecular, chemistry, science)

Why Is a Group of Molecules Called a Mole?

Above the clouds 130 nautical miles below, astronaut Mark C. Lee floats freely without tethers as he tests the new Simplified Aid for Extravehicular Activity (EVA) Spacewalk Rescue (SAFER) system, Sept. 16, 1994. Space Shuttle Discovery, STS-64

Gravity: From Apples to the Universe

Discover

The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)

New Seven Wonders of the World

Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics

10 Greatest Baseball Players of All Time

The field takes the turn one after the restart during the 103rd Indianapolis 500 at Indianapolis Motor Speedway on May 26, 2019 in Indianapolis, Indiana. (auto racing, Indy 500)

Why Is the Indy 500 Held on Memorial Day Weekend?

Arctic wolf (Canis lupus arctos)

Behind the Scenes: 9 Historical Inspirations for Game of Thrones

Los Angeles Police Department wanted flyer on Elizabeth Short, aka the "Black Dahlia," who was brutally murdered in January 1947. The FBI supported the Los Angeles Police Department in the case, including by identifying Short through her fingerprints that

America’s 5 Most Notorious Cold Cases (Including One You May Have Thought Was Already Solved)

Grasshopper on white background. (bug; insect)

Would You Eat Bugs?

American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.

What’s the Difference Between Bison and Buffalo?

yttrium: Facts & Related Content

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Facts

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Photos

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Topics

chemical element rare-earth element hydrogen carbon sodium nitrogen sulfur phosphorus boron iodine fluorine zinc

Quiz

Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement

Periodic Table of the Elements

Periodic Table of the elements concept image (chemistry)

Facts You Should Know: The Periodic Table Quiz

Concept artwork on the periodic table of elements.

118 Names and Symbols of the Periodic Table Quiz