<span>The mass number of an ion is calculated by adding the neutrons and electrons together. In this case 159+107=266. However, since this ion has a +1 charge, you must add 1 to the electrons. This would give a total mass of 267.</span>
True... atoms contain what are called electrons and protons. the protons being possitively charged and the elctrons being negatively charged
Shifting plates, underwater volcanoes. many different variables come in play