Question

Alpha particles present a health threat only when they are taken internally through inhalation or ingestion or when an open wound permits contact with delicate internal tissues. t/f

Answer 1

Alpha particles present a health threat only when taken internally via inhalation, ingestion, or through contact with internal tissues. They have limited penetrating ability and can be stopped by thin shielding. Inhaled or ingested alpha-emitting radioactive substances can cause damage to internal tissues.

Step-by-step explanation:

False. Alpha particles present a health threat only when they are taken internally through inhalation or ingestion or when an open wound permits contact with delicate internal tissues. Alpha particles have a limited ability to penetrate matter, and they can be stopped by very thin shielding such as a sheet of paper or a layer of clothes. However, if alpha-emitting radioactive substances are inhaled or ingested, they can cause damage to internal tissues, including the DNA in the cells of the lungs, which can lead to cancer.