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No. An element, by definition, does not contain any other element. The only element that contains carbon is carbon; however, carbon does make compounds with other elements - for example, carbon dioxide and carbon monoxide with oxygen.
All of them tend not to react with each other until you get lower down the group
No, "oxygeon" is not an element. Oxygen, on the other hand, is an element that is represented on the periodic table by the symbol "O" and has an atomic number of 8.
An element.
No, the first element on the Periodic Table is Hydrogen, but because of its unusual behaviour it is usually placed by itself, not next to any other elements. The second element is Helium.