ú·a  Safe-Inferred"Find element by atomic its number Find element by its symbol 'Show number of electrons in each shell Number of valance electrons Number of bounds in element       Safe-Inferred'Parse formula and generate all isomers        radium-0.1Chemistry.ElementChemistry.MoleculeElement atomicNumberelementByAtomNumberelementshellElectronsvalenceElectronCountvalenceBoundCountMolecule parseFormulasymbol_name_weightelementssubshellMaxElectronsshellConfigGen fillShells_moleculeElements_moleculeBoundsFormula