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118 Elements and Their Symbols and Atomic Numbers: Definition, Symbol with Atomic Number118 Elements and Their Symbols and Atomic Numbers: The periodic table is a well-organized chart that contains all the known elements in the universe.These elements are building blocks of matter ...
VOICEOVER: Chemical symbols and formulas. Every element in the periodic table is represented by a ... acid contains two hydrogen atoms, one sulfur atom and four oxygen atoms.
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