52 Atom-parts and 35 links Contents : 14 hydrogen (white), 6 carbon (black), 7 oxygen (red), 6 halogen (green), 3 nitrogen (blue), 2 sulphur (yellow), 8 metal (grey), 2 phosphorus (purple), 1 boron (beige), 1 dsp 3 (beige), 1d2sp3 (beige) Links : 20 medium grey, 5 medium purple, 12 long flexible grey.