var data =
{
    "elements": [

         {
            "name": "Radon", 
            "appearance": "colorless gas, occasionally glows green or red in discharge tubes", 
            "atomic_mass": 222, 
            "boil": 211.5, 
            "category": "noble gas", 
            "color": null, 
            "density": 9.73, 
            "discovered_by": "Friedrich Ernst Dorn", 
            "melt": 202, 
            "molar_heat": null, 
            "named_by": null, 
            "number": 86, 
            "period": 6, 
            "phase": "Gas", 
            "source": "https://en.wikipedia.org/wiki/Radon", 
            "spectral_img": "https://en.wikipedia.org/wiki/File:Radon_spectrum.png", 
            "summary": "Radon is a chemical element with symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as a decay product of radium. Its most stable isotope, 222Rn, has a half-life of 3.8 days.", 
            "symbol": "Rn", 
            "xpos": 18, 
            "ypos": 6, 
            "shells": [
                2,
                8, 
                18, 
                32, 
                18, 
                8
            ]
        }
    ]
}
