caption: Mass Number The Mass Number identifies an isotope
exif: {"Image DocumentName": "Mass Number The Mass Number identifies an isotope", "Image ImageDescription": "Isotopes are represented by the chemical symbol and numbers of subscripts and superscripts. 1. Mass number upper left. 2. Atomic Number lower left.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}