I used the bohr package to draw the atomic structure of silicon atom.

  1. Is it possible that the outer 4 electrons appears distributed symmetrically (left, right, top, bottom).
  2. How to show only Si-core and the outer 4 electrons, i.e., I want Si in a small circle at the centre surrounded by another circle with 4 outer electrons.
  3. Is there any package which helps in showing one Si-atom surrounded by four neighbouring Si-atoms with all the 4 electrons of central Si-atom sharing electrons from neighbouring Si-atoms.

Something like this

Silicon atom


1 Answer 1


Just draw it yourself using TikZ. I extracted the drawing options from the bohr package to match the looks.

  nucleus options/.style = {draw=black!80,fill=black!10,opacity=.25},
  shell options/.style = {draw=blue!75,thin},
  electron options/.style = {blue!50!black!50},
  silicon/.pic = {
    \node (nucleus) at (0,0) {Si};
    \draw[nucleus options] (nucleus) circle (1em);
    \draw[shell options] (nucleus) circle (2em);
    \foreach \angle in {0,90,180,270} {
      \fill[electron options] (nucleus) ++(\angle:2em) circle (1.5pt);
  \foreach \angle in {0,90,180,270} {
    \fill[lightgray,rotate=\angle] (2.5em,0) ellipse (1em and .5em);
    \path (\angle:5em) pic {silicon};
  \path (0,0) pic {silicon};

enter image description here

  • 2
    Actually, I have no idea how the orbitals are supposed to overlap in silicon. Commented Aug 2, 2016 at 19:56

You must log in to answer this question.