According to octet rule, they need 8 electrons in their outermost shell to be stable.But the maximum electrons that can be accomodated in each shell varies and the outermost electron of
in the outermost orbital of the given element depends upon it
Since each data contain 3 significant digits, the answer must be reported with 3 significant digits. So, the correct answer is 0.0409 M, which is the option B.
