var data =
{
    "elements": [

        {
            "name": "Francium", 
            "appearance": null, 
            "atomic_mass": 223, 
            "boil": 950, 
            "category": "alkali metal", 
            "color": null, 
            "density": 1.87, 
            "discovered_by": "Marguerite Perey", 
            "melt": 300, 
            "molar_heat": null, 
            "named_by": null, 
            "number": 87, 
            "period": 7, 
            "phase": "Solid", 
            "source": "https://en.wikipedia.org/wiki/Francium", 
            "spectral_img": null, 
            "summary": "Francium is a chemical element with symbol Fr and atomic number 87. It used to be known as eka-caesium and actinium K. It is the second-least electronegative element, behind only caesium. Francium is a highly radioactive metal that decays into astatine, radium, and radon.", 
            "symbol": "Fr", 
            "xpos": 1, 
            "ypos": 7, 
            "shells": [
                2,
                8, 
                18, 
                32, 
                18, 
                8, 
                1
            ]
        }
    ]
}
