Which of the following has the same number of electrons in its outermost shell and penultimate shell ?

Which of the following have the same number of electrons in outermost shell?

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

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

Which of the following species have the same number of electrons in its outermost as well as penultimate shell ?

which among th efollowing species has the same number o felectrons in its outermost as well as penultmate shell ?

Which of the following has same number of electrons in te last shell?

Which of the following has same number of electrons in the last shell?