Which of the following species has some number of electrons as `F^(Ө)`?

Which of the following species have maximum number of electrons ?

Which of the following species have maximum number of electrons ?

Which of the following species has more number of electrons in comparison with the neutrons?

Which of the following species has the same number of electrons in the outermost and penultimate shells?

Which of the following species has four lone pair of electron..

which among the following species has the same number of electrons in its outermost as well as penultimate shell ?

Which of the following species has maximum number of unpaired electrons?

Which of the following has least number of unpaired electrons ?