sorry to have to ask but I'm on my last question and totally stumped as to what to do next. lots of points for grabs Because I know it's a lot
The mass of an isotope can be approximated by adding together the number of protons and neutrons in its nucleus. For example, a carbon-12 nucleus has 6 protons and 6 neutrons, and its mass is approximately 12 amu. Look at the models for the two isotopes of boron. Each model shows the isotope's natural percent abundance and the composition of its nucleus. Use the data to calculate the approximate atomic mass of boron.