6328Ni has a half-life of 92 yr . find its decay constant
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6328Ni has a half-life of 92 yr . find its decay constant
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- In the decay 22589Ac → AZFr + 42He identify the mass number (by balancing mass numbers) and the atomic number (by balancing atomic numbers) of the Fr nucleus. (a) the mass number: ___________ (b) the atomic number:__________The half-life of 30P is 2.50 minutes. If a sample of 30P has 1.60 x 1010 nuclei present initially, after 10.0 minutes how many remain?2H is a loosely bound isotope of hydrogen, called deuterium or heavy hydrogen. It is stable but relatively rare — it form only 0.015% of natural hydrogen. Note that deuterium has Z = N, which should tend to make it more tightly bound, but both are odd numbers. Calculate BE/A, the binding energy per nucleon, for 2H in megaelecton volts per nucleon.
- b) What type of decay is happening in the equation below? State two of the conservation laws that apply and explain how they are satisfied 238 92 U 234 Th + 4 a 90 2 c) Use the graph below to calculate the half-life of Protactinium 234, explain how you got your answer. Half Life of Protactinium 234 50 40 30 20 10 222222° 80 70 60 Activity (Bq) 0 20 20 40 40 60 80 100 120 140 160 Time (seconds)Question 4 Use the following data to calculate the binding energy per nucleon in MeV of the Rhodium-103 nuclide Mass of Rh atom = 102.905503 u 103 45 %3D Mass of proton = 1.007276 u Mass of neutron = 1.008664 u %3D Mass of electron = 0.00054858 u %3D 1u = 931.494 MeV [2.2] Question 5The decay constant for 198Au is 2.97 x 10-6 s-1. Calculate the half life.