What is the electron configuration for F? Chemistry Electron Configuration Electron Configuration 1 Answer anor277 May 20, 2018 Well, for #"fluorine"#, #Z=9...# Explanation: And so for a fluorine atom.... #1s^(2)2s^(2)2p^5#...the fact that fluorine ALMOST has a full valence shell, i.e. equivalent to that of neon, #1s^(2)2s^(2)2p^6#, makes fluorine the most reactive element on the Periodic Table... Answer link Related questions How do electron configurations in the same group compare? How do the electron configurations of transition metals differ from those of other elements? How do electron configurations affect properties and trends of a compound? What is the electron configuration for a sodium ion? What is the electron configuration for a nitride ion? What is the electron configuration of chromium? What is the electron configuration of copper? What is Hund's Rule? What is the ground state electron configuration of the element germanium? What are some examples of electron configurations? See all questions in Electron Configuration Impact of this question 4179 views around the world You can reuse this answer Creative Commons License