Question text
22 Which radioactive isotope can be used for measuring cracks or flaws in metal components? A americium-241, an alpha emitter with a half-life of 432 years B cobalt-60, a gamma emitter with a half-life of 5 years C radium-223, an alpha emitter with a half-life of 11 days D barium-137, a gamma emitter with a half-life of 3 minutes
22 Which radioactive isotope can be used for measuring cracks or flaws in metal components?
A americium-241, an alpha emitter with a half-life of 432 years
B cobalt-60, a gamma emitter with a half-life of 5 years
C radium-223, an alpha emitter with a half-life of 11 days
D barium-137, a gamma emitter with a half-life of 3 minutes
Select your answer: