(9) What is the common characteristic of the elements of the same group in the periodic table? (a) Electrons in outer most shell (b)Total number of electrons (c) Total number of protons (d) Atomic weight
option a. Elements of the identical organization in a periodic desk have an same digital configuration this means that they have got identical outer shell electronsand those outer electrons are referred to as valence electrons. These valence electrons are used for making chemical bonds with different elements.
