(a) How much energy (in MeV is released when Radium – 226 (m2-25 = 226.025402 u) alpha decays and becomes Radon – 222 (m-m = 222.017571 u)? The mass of the a – particle is mg=4.002602 u. Write the nuclear reaction. (b) If the nucleus was initially at rest, calculate the velocities of the a- particle and the Radon– 222 nucleus in part (a). (c) What percentage of the total kinetic energy does the a- particle carry away?

(a) How much energy (in MeV is released when Radium – 226 (m2-25 = 226.025402 u) alpha decays and becomes Radon – 222 (m-m = 222.017571 u)? The mass of the a – particle is mg=4.002602 u. Write the nuclear reaction. (b) If the nucleus was initially at rest, calculate the velocities of the a- particle and the Radon– 222 nucleus in part (a). (c) What percentage of the total kinetic energy does the a- particle carry away?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter2: Relativity Ii

Section: Chapter Questions

Problem 18P

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