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Q.

Two letter symbols are used to represent most of the elements. The list of such elements are given below.  The first letter is always written in capitals and the second letter is always small.

Example: Symbol of Cobalt is Co but not CO. CO represents a molecule of Carbon monoxide.

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Two letter symbols are used to represent most of the elements. The list of such elements are given below.  The first letter is always written in capitals and the second letter is always small.Example: Symbol of Cobalt is Co but not CO. CO represents a molecule of Carbon monoxide.