Answer:
α particle and β particle are released due to disintegration or decay of radioactive element.
Step-by-step explanation:
Alpha decay
When a alpha particle is released from a redioactive element at time the daughter element that is formed has 2 unit less atomic number and 4 unit less atomic mass than that of parental element.
Beta decay
When a beta particle is being released at that the daughter element that is produced has one unit more atomic number and same atomic mass with respect to the atomic number and atomic mass of the parental element.