Question

which element has the same mass number and the charge in its nucleus as alpha radiation?

Answer 1

Solution.
An element that has the same mass number and charge in the nucleus as in alpha radiation is nothing more than helium, because no other element, be it an isotope, can have any other charge, but the mass number can . Therefore, only one element can serve as a response: helium with mass number 4 and charge in nucleus 2.
Answer:
42He – is a chemical element.