Any of the metallic elements from the central block of the periodic table.
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A Twig Science
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Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

When Mendeleev created the Periodic Table in 1869, he also predicted the existence of elements yet to be discovered, including gallium. What are the properties of this rare metal and why was its discovery so important? Chemistry -...

Learn about the 6 Halogens in group 17 with the Halogens Song Periodic Table by KLT.

Astronomers have discovered a red giant 3,500 light-years from Earth that could be one of the oldest stars in the cosmos.

Learn the basics about how atoms bond when learning about the structure of atoms. Bonds form by the attraction of negatively charged electrons and the positive nucleus of atoms. Atoms have a positively charged tiny nucleus which contains...

Learn the basics about how atoms bond when learning about the structure of atoms. Bonds form by the attraction of negatively charged electrons and the positive nucleus of atoms. Atoms have a positively charged tiny nucleus which contains...