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118 Elements and Their Symbols and Atomic Numbers: Definition, Symbol with Atomic Number
There are 118 elements in the periodic table, each with a unique symbol and atomic number. Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of ...
Periodic Table Quiz: Can You Guess the Element from Its Chemical Symbol?
What element is Si? Si stands for Silicon. Fun science fact ... present in a very small part of the atmosphere. The chemical ...