<small>[[Chemistry]] | [[19th Century]]</SMALL> | | | |---|---| |Atomic Mass|[83.80 u](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Atomic-Weight)| |Standard State|[gas](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Physical-Description)| |Electron Configuration|[[Ar]4s23d104p6](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Electron-Configuration)| |Oxidation States|[0](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Oxidation-States)| |Electronegativity (Pauling Scale)|[3](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Electronegativity)| |Atomic Radius (van der Waals)|[202 pm](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Atomic-Radius)| |Ionization Energy|[14.000 eV](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Ionization-Energy)| |Melting Point|[115.79 K](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Melting-Point)| |Boiling Point|[119.93 K](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Boiling-Point)| |Density|[0.003733 g/cm³](https://pubchem.ncbi.nlm.nih.gov/element/36#section=Density)| |Year Discovered|[1898](https://pubchem.ncbi.nlm.nih.gov/element/36#section=History)|