1. Electronic Configuration:
* Fluorine (F) has an atomic number of 9, meaning it has 9 electrons.
* The electronic configuration of fluorine is: 1s² 2s² 2p⁵
2. Filling the Orbitals:
* The 2p subshell has three orbitals (px, py, pz), each capable of holding 2 electrons.
* The 2p⁵ configuration means there are five electrons in the 2p subshell.
* Since each orbital can hold two electrons, we fill them like this: 2px² 2py² 2pz¹
3. Unpaired Electrons:
* Notice that the 2pz orbital has only one electron. This electron is unpaired.
Therefore, a ground state fluorine atom has one unpaired electron.