Measuring and Detecting Radioactivity


Why is alpha radiation dangerous inside the body?

2 years ago


1 Reply




Heath Miller

1 Answer

James H Profile Picture
James H Verified Sherpa Tutor ✓

Enthusiastic physics and maths tutor with 30 years experience

81 reviews

It is highly ionizing so can cause cancer by ionizing DNA. It is safe outside the body as skin/layer of grease on skin/clothing will absorb alpha particles, so an alpha source is only dangerous if it gets inside the body.

I'm available for 1:1 private online tuition!

Click here to view my profile and arrange a free introduction.

Think you can help?

More Physics GCSE Questions
Sherpa Badge

Need a GCSE Physics tutor?

Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.

Find a GCSE Physics Tutor