Final answer:
The chemical symbol for boron on the periodic table is the single letter B.
Step-by-step explanation:
The chemical symbol for the element boron on the periodic table is B. This can be confirmed by checking the periodic table, where each element is listed with its unique one or two-letter abbreviation. Boron is the fifth element on the periodic table and is represented by the single letter B. To write the chemical symbol for each element as requested in the example, for boron, you would simply write 'B'.