Bismuth-208, which has an atomic mass of 208u and 83 protons in the nucleus, decays through the emission of 2 alpha particles and a beta-positive particle. What isotope results from this decay?
20883Bi ==> xyZ + 42a + 42a + 01B x = 208 - 8 = 200 y = 83 - 5 = 78 Proton number = 78 therefore Z = Pt Z= 20078Pt
DL
Related Physics A Level answers
All answers ▸A source of green laser light has a wavelength of 560nm, what is its frequency? Give your answer to an appropriate number of significant figures and using the correct units.
Discuss the difference between sharpness and contrast in x-ray imaging
What is the maximum length a bungee rope with a spring constant of 100 Nm−1 can be for an 80kg man to be able to jump from 100m above a river without touching the water?
What's the difference between Potential Difference and Electromotive Force