The Chemical Symbols Tools Palette

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Use the Chemical Symbols tools to add chemical symbols to your structure. When you click the Chemical Symbols tool, the following palette appears:

When you attach a symbol (other than H-dot or H-dash) to an atom, it remains at a fixed distance from the central character of the atom label. If you drag the symbol, it will maintain that fixed distance as it moves around the atom.

You can, however, use a symbol without attaching it to an atom, place or move it anywhere, and resize it.