To determine which element has a mass number of 48, we need to look for an element whose mass number is closest to 48. The mass number represents the sum of protons and neutrons in the nucleus of an atom.
If an element has a mass number of 48, it means that the sum of protons and neutrons in its nucleus is 48. However, since an element can have multiple isotopes with different numbers of neutrons, we need more information to determine the specific element with a mass number of 48.
If you have any additional details about the element, such as its atomic number or chemical symbol, I can assist you further in identifying the element.