[Global] Number=1 ShortName=H CAS=1333-74-0 Name=Hydrogen Bloc=s Family=Non-metal Wikipedia=http://en.wikipedia.org/wiki/Hydrogen [History] Year=1766 Discoverer=Henry Cavendish Etymology=Greek "hydro" and "gennao" for "forms water" [Values] MeltingPoint=14.01 BoilingPoint=20.28 Mass=1.00794 CovalentRadius=31 VanDerWaalsRadius=120 ElectronicAffinity=0.754204 Electronegativity=2.2 ElectronicConf=1s1 FirstIonistionEnergy=1312 SecondIonisationEnergy=-1 ThirdIonisationEnergy=-1