These elements are not used as catalysts.
These are the radioactive elements. See this link.
A. A shorthand way of representing the chemical elements.
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Elements, such a yttrium, have helped to create the lights that are used in televisions
Spoliarium was created in 1884.
Spoliarium is an 1884 painting by the Filipino artist Juan Luna.
juan Luna
A Filipino painter, Juan Luna.
Filipino artist Juan Luna
juan luna -the spoliarium
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Juan Luna
Juan Luna in 1884.He Drew it as a sign in the Spain's abuses on the Filipino people.
Juan Luna used oil on canvas as a medium for his paintings, including his famous work "Spoliarium." This medium allowed him to create detailed and realistic images with rich colors and textures.
The "Periodic Table of Elements" is used for classifying the elements, and to know which one is which.
Silicon and germanium are the elements used in transistors