Domanda apertaOne isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?1905views
Domanda apertaHow many protons, neutrons, and electrons are there in a neutral atom of 131I (iodine-131)?1666views
Domanda apertaTwo isotopes of the same element will have the same number of _____ but a different number of ____.1081views
Domanda apertaHow many protons, neutrons, and electrons are there in a neutral atom of 30P (phosphorus-30)?1115views