Of the following processes,which one changes the atomic number?

Question

Quizplus · Accepted Answer

Alpha emission releases an alpha particle (which is essentially a helium nucleus) and reduces the atomic number by 2 and the mass number by 4. Beta emission releases a beta particle (which is essentially an electron or positron) and increases or decreases the atomic number by 1 but does not affect the mass number. Electron capture involves capturing an electron by the nucleus and reducing the atomic number by 1. Positron emission releases a positron (which is essentially a positively charged electron) and increases the atomic number by 1 but does not affect the mass number. Therefore, all of these processes change the atomic number.

Of the Following Processes,which One Changes the Atomic Number