caption: Atomic number is the number of protons
exif: {"Image DocumentName": "Atomic number is the number of protons", "Image ImageDescription": "Mass number is the number of protons + neutrons. An atom with 6 protons and 7 neutrons has an atomic number of 6 and a mass number of 13. This atom would be carbon because carbon\u2019s atomic number is 6.", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}