Reply To: Electron Shell Table Home › Forums › Braille Formats/Textbook › Electron Shell Table › Reply To: Electron Shell Table January 24, 2017 at 1:06 pm #28213 brlbyrussellParticipant Thank you Cindi. The headings are now keyed and the grouping symbols are now drawn. Attached is a PDF mock-up with two different representations of the grouping symbols. I just have to decide which drawn grouping symbol is easier to read. Attachments:You must be logged in to view attached files.