<prompt> Unit of one of radiation absorbed isGreyRoengtenCurieBequerrel  <response>: Units of potencyRoentgen and coulomb per kilograme Units of exposure. It is the amount to which a person is exposed.Red and Gray Units of absorbed dose. It is the amount which is absorbed per gram of tissue.Rem and Sievert Product of the absorbed dose and the modifying factor. Represent the degree of potention danger to health. 