Atomic structure of Silicon and Germanium
Silicon atomic number is 14. It means there are 14 electrons present in one Silicon atom. So, electronic configuration of Silicon is K=2, L=8, M=4.
Germanium atomic number is 32. So, electronic configuration of Germanium is K = 2, L=8, M = 18, N = 4.
It has four valence electrons (lone pair of electrons) in their outermost shell (valence shell). These lone pair electrons combine with other lone pair electrons and make covalent bond. The atoms are arranged in an ordered array in tetrahedral crystal structure.