Final answer:
The correct electron configuration for both neon and a fluoride ion is 1s²2s²2p⁶.
Step-by-step explanation:
Fluorine and neon have the same electron configuration up to the 2s²2p⁶ configuration. The correct electron configuration for both neon and a fluoride ion is option a) 1s²2s²2p⁶. Neon has the electron configuration 1s²2s²2p⁶ and fluorine gains one electron to achieve the noble gas configuration, resulting in F⁻ ion with the same electron configuration.