Domanda apertaHow many protons, neutrons, and electrons are there in a neutral atom of 131I (iodine-131)?1663views
Domanda apertaTwo isotopes of the same element will have the same number of _____ but a different number of ____.1080views
Domanda apertaHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?1113views
Domanda apertaAn isotope of yttrium has 39 protons and 59 neutrons. What is the mass number of that isotope?2212views