Exploration document on SILICON. Atomic range 14 Atomic muscle size 28.0855 g.mol -1 Electronegativity according to Pauling 1.8 Denseness 2.33 g.cm -3 at 20 °C Melting point 1410 °C Cooking position 3265 °C Vander waals radius .132 nm Ionic radius .271 (-4) nm ; .041( 4) Isotopes 5 Electronic shell Ne 3s23p2 Vitality of first ionisation 786.3 kJ.mol -1 Strength of next ionisation 1576.5 kJ.mol -1 Power of next ionisation 3228.3 kJ.mol -1 Strength of …