Open QuestionRounded to the nearest whole number, how many protons are in an atom of krypton?1577views
Open QuestionAn atom of the isotope 133Cs contains how many protons (p), neutrons (n), and electrons (e)?1314views
Open QuestionAn aluminum isotope consists of 13 protons, 13 electrons, and 14 neutrons. Its mass number is ____.2236views
Open QuestionThe mass number of an atom is 15 and its atomic number is 7. the atom probably has...1143views
Open QuestionWhat is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons?1253views