The atomic radius of an atom is the distance between the centre of the nucleus and the valence shell of electrons. The correct order of atomic radius and ionization energy is F, O, S, and S, O, F. The correct option is C.
What is ionization energy?The minimum amount of energy required to remove most loosely bound electron from an isolated gaseous atom of that element in the ground state is called ionization energy.
Along a period ionization energy increases and decreases down the group. The atomic radius generally increases down a group and decreases along a period.
Here 'F' has high ionization energy and it has low atomic radius.
Thus the correct option is C.
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the outer most shell of an atom is called the valane shell. the number of electrons in this shell determines ________.