var data =
{
    "elements": [

        {
            "name": "Calcium", 
            "appearance": null, 
            "atomic_mass": 40.0784, 
            "boil": 1757, 
            "category": "alkaline earth metal", 
            "color": null, 
            "density": 1.55, 
            "discovered_by": "Humphry Davy", 
            "melt": 1115, 
            "molar_heat": 25.929, 
            "named_by": null, 
            "number": 20, 
            "period": 4, 
            "phase": "Solid", 
            "source": "https://en.wikipedia.org/wiki/Calcium", 
            "spectral_img": "https://en.wikipedia.org/wiki/File:Calcium_Spectrum.png", 
            "summary": "Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust. The ion Ca2+ is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.", 
            "symbol": "Ca", 
            "xpos": 2, 
            "ypos": 4, 
            "shells": [
                2,
                8, 
                8, 
                2
            ]
        }

    ]
}
