Question

why the second lonization potential is greater then first l. p.​

Answer 1

Explanation:

Fluorine has 9 electrons out of which 7 are valence electrons. ... Now, if we want to remove another valence electron we should provide energy equal to the second ionization enthalpy. This energy is greater than the first because initially 9 protons in the nucleus were exerting attractive force on 9 electrons.