úÎ ² ³  portablealpha&Krzysztof Langner <klangner@gmail.com> Safe-Inferred"Find element by its atomic number  atomicNumber (element 8) == 8 Find element by its symbol * atomicNumber (elementBySymbol "O") == 8 'Show number of electrons in each shell X For elements which are exception to Aufbau principle configuration is given manually _ Is it possible to calculate it for all elements based only on atom properties?  let e = element 8  shellElectrons e == [2, 6] Number of valance electrons  let e = element 8  valanceElectrons e == 6 %Number of covalent bounds in element  let e = element 8  covalentBounds e == 2                radium-0.3Chemistry.ElementElement atomicNumber atomWeightelectroNegativityionizationEnergyelementelementBySymbolelectronConfigvalanceElectronscovalentBoundsUnknownsymbol_nameptableconfigExceptionssubshellMaxElectronsshellConfigGen fillShells