var data =
{
    "elements": [

        {
            "name": "Erbium", 
            "appearance": "silvery white", 
            "atomic_mass": 167.2593, 
            "boil": 3141, 
            "category": "lanthanide", 
            "color": null, 
            "density": 9.066, 
            "discovered_by": "Carl Gustaf Mosander", 
            "melt": 1802, 
            "molar_heat": 28.12, 
            "named_by": null, 
            "number": 68, 
            "period": 6, 
            "phase": "Solid", 
            "source": "https://en.wikipedia.org/wiki/Erbium", 
            "spectral_img": null, 
            "summary": "Erbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements on Earth. As such, it is a rare earth element which is associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden, where yttrium, ytterbium, and terbium were discovered.", 
            "symbol": "Er", 
            "xpos": 14, 
            "ypos": 9, 
            "shells": [
                2,
                8, 
                18, 
                30, 
                8, 
                2
            ]
        }
    ]
}
