shivanshjena5990 Asked: December 2022 state the group and period of the element having 3 cells with 3 electrons in valence shell
shivanshjena5990 Asked: December 2022 group and period of elements having 3 cells with 3 electrons in valence shell
shivanshjena5990 Asked: December 2022 state the group and period of elements having 3 cells with 3 electrons in valence shell