Question

Use the following information to answer the next question. The element un unquadium (1) Uud) has been created by fusing calcium ions Ca) with plutonium nuclei (Pu). The calcium ions are doubly charged (+2e) and have a mass of 7.96 x 10-25 kg. To accelerate these ions to a high enough energy to fuse with plutonium, they are repeatedly accelerated by an electric potential difference. They are contained in a magnetic field between these accelerations. In one stage of the acceleration process, calcium ions enter the accelerating chamber at a speed of 1.00 x 10 m/s and exit it at a speed of 275 x 10 m/s. They immediately enter a magnetic field and follow a path that has a radius of 1.24 m. The decay chain of unnnquadium-289 is shown below. 2Ung Uub +X+7D5+Y Unusquadium-289 bas a half-life of 30.4 s. 15. The decay particles X and Y are A. both alpha particles B. both beta positive particles C. a beta positive particle and an alpba particle, respectively D. an alpha particle and a beta positive particle, respectively

Answer 1

Given Reaction. 281 285 289 Ung Unb of x → Ds & Y. ITO 112 Solu: As we know for any reaction, man number and atomic number should be conserve. 28 289 Ung Uno Х 112 2 24 289 295 lly Una llo ..x in alpha particle. and Und Unb fx Ls +2y 2 So y s also alpha pasticle -:option (A) both alpha postides. is correct.