Identify the unknown isotope X in the following decays.
Identify the unknown isotope X in each of the following decays. Enter X in the form Y-A, where Y is the one or two letter chemical symbol and A is the mass number. (a) x rightarrow^224Ra + alpha (b) x rightarrow^232Th + gamma (c) x rightarrow^12C + e^- +^-v (d)^51Cr + e^- rightarrow x + v
The boron isotope decays into the carbon isotope . What kind of particle is emitted in the decay? a. A beta particle is emitted. b. An alpha particle is emitted. c. A gamma ray is emitted. d. A positron is emitted.
Part C Identify the nuclide produced when fluorine-18 decays by positron emission: 18F+ + ? Express your answer as an isotope using prescripts. View Available Hint(s) ΑΣΦ ? Submit Part D Identify the nuclide produced when thallium-201 decays by electron capture: 201 T1+2e^x + ? Express your answer as an isotope using prescripts. View Available Hint(s) ΑΣΦ ? PART Submit
What is the half‑life of an isotope that decays to 25% of its original activity in 33.7 h? What is the half‑life of an isotope that decays to 12.5% of its original activity in 10.2 h?
identify the unknown particle x in the following nuclear reaction equation identify the unknown particle x in the following equation for fission (d) on + X – 133 Sb + 2 Nb + 9 on Help Greek chemPad . (Enter your answers in the form ^x.)
Part A Identify the nuclide produced when americium-241 decays by alpha emission:24 AmHe + ? Express your answer as an isotope using prescripts. View Available Hint(s) ΑΣΦ ? Submit Part B Identify the nuclide produced when thorium-234 decays by beta emission:234 The + ? Express your answer as an isotope using prescripts. View Available Hint(s) 0 ΑΣΦ ? Submit
A particular radioactive isotope decays from 190 milligrams (mg) to 152 mg in 15 days. Find the half life of the isotope. Hint: Find the rate first. The half life of the isotope is the half value of 190 mg then solve for x. Your answer is days.
Chromium-51 decays by electron capture. What isotope is formed when^51Cr decays in this way?^50Cr^52Cr^51Mn^51V
What is the half‑life of an isotope that decays to 6.25% of its original activity in 70.6 h?