rect 5 40 29 75 Li rect 6 8 30 41 H rect 868 6 894 41 He rect 656 78 726 115 Number of neutrons for the most abundant or stable isotope of {{name}} rect 657 42 726 75 {{name}} has {{number}} protons rect 411 12 540 113 Symbol for {{name}} showing Lewis structure (when available) rect 256 58 369 173 {{name}} has {{period}} electron shells rect 65 5... Found on http://en.wikipedia.org/wiki/Pleasantly