Knowing that oxygen-15 can undergo positron emission, which of the elements listed in the table does an oxygen-15 nucleus become when it undergoes positron emission?
|Number of Protons||5||6||7||8||9||10||11|
When an atomic nucleus emits a positron, by how much does the mass number of the remaining nucleus change?
The following nuclear equation shows how an isotope of carbon decays to an isotope of boron via positron emission.
What is the value of in the equation?