Which of the Following Has the Lowest Ionization Energy
First ionization energy is the energy required to separate one valence electron from an atom in gas phase. Hence sulphur has the least ionization enthalpy in this case. Ionization Energy Trends Of The Periodic Table Hence sodium electronic configuration 1s22s22p63s1 has the lowest ionisation energy. . From this trend Cesium is said to have the lowest ionization energy and Fluorine is said to have the highest ionization energy with the exception of Helium and Neon. Prior to its discovery it was referred to as eka-caesium. So the decreasing order of ionization potential of all four elements is as follows. Which group has the largest second ionization energy. A Oxygen B Nitrogen C Fluorine D Sulphur. The easier the atom can release the electron the lower the energy required to remove it ie. From this trend Cesium is said to have the lowest ionization energy and Fluorine is said to have the highest ionization ...
