- Need Help Understanding How To Solve This Problem 3 Also Shouldn T The Decay By Alpha Emission Decrease The Atomic Ma 1 (86.18 KiB) Viewed 37 times
shouldn't the decay by alpha emission decrease the atomic mass by
four but instead, show two? or is that an error?example: 1-2 from
85,132 ==>83,130
3. The plot below shows a section of a nuclear decay chain where each point represents a specific isotope and the line connecting them represents a decay (5 total). For the five segments on the chart, write out the nuclear decay reaction starting at isotope (85,132) and working to the isotope (81,124). Neutrons vs Protons in a Decay Chain At Bát Hotsở B 133 132 27 85, 132 131 130 130 2 53 Bi-s 129 128 81, 128 83, 130 127 126 83, 126 125 124 123 Number of Neutrons 82, 127 81, 124 5 80 81 82 83 84 85 86 Number of Protons. 4. Consider a fictional radioisotope 11X (311.1766 amu) a. If a 0.750 g sample of X-311 releases 5.75 x 10¹6 alpha particles in 7.5 minutes, what is the half-life? b. If a sample initially contains 34.5 mg of X-311, how much X-311 will remain after 17 minutes have passed (use the half-life from part b to answer this question). C. What is the activity of 9.5 mg of X-311 (use the half-life from part b). 4 22,