A "mad" scientist attempts to take a sample of Mercury-199 and bombard it with neutrons. The react creates a proton and Gold-199. His joy is short-lived when in a few days the radioactive Gold-199 reverts ba to Mercury-199 emitting a single particle. What is the emitted particle? 199 79 Au 199 130Hg+? 80 a beta (-) particle ß- a proton; H+ an alpha particle; a

A "mad" scientist attempts to take a sample of Mercury-199 and bombard it with neutrons. The react creates a proton and Gold-199. His joy is short-lived when in a few days the radioactive Gold-199 reverts ba to Mercury-199 emitting a single particle. What is the emitted particle? 199 79 Au 199 130Hg+? 80 a beta (-) particle ß- a proton; H+ an alpha particle; a

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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b) Complete the following decay reaction by identifying both the temporary nucleus (??) and the end product (?) that it decays into. In this case, sodium-23 is bombarded with protons, forming a short-lived nucleus which quickly undergoes alpha decay. 2Na+H → (??) → (⁄?) + ª Enter the chemical symbol for the temporary nucleus: Enter the mass number for the end product, A = Enter the atomic number for the end product, Z = Enter the chemical symbol for the end product: AV A/ AV 10
238U is long-lived but ultimately unstable; it will eventually spontaneously break into two fragments, a 4He nucleus and a 234Th nucleus, in a process called alpha decay, which we’ll learn about in the next section. A great dealof energy is released in the process. What must be true about the masses of the nuclei involved?A. mU > mTh + mHeB. mU = mTh + mHeC. mU < mTh + mHe
3. A beam of helium-3 atoms (m = 3.016 u) is incident on a target of nitrogen-14 atoms (m = 14.003 u) at rest. Dur- ing the collision, a proton from the helium-3 nucleus passes to the nitrogen nucleus, so that following the col- lision there are two atoms: an atom of "heavy hydro- gen" (deuterium, m = 2.014 u) and an atom of oxygen-15 15.003 u). The incident helium atoms are moving at (m a velocity of 6.346 × 10° m/s. After the collision, the deu- terium atoms are observed to be moving forward (in the same direction as the initial helium atoms) with a velocity of 1.531 x 10' m/s. (a) What is the final velocity of the oxygen-15 atoms? (b) Compare the total kinetic energies before and after the collision.
Consider an object of mass 26.1 kg. Assume that it s made up of equal numbers of protons, neutrons, and electrons. How many protons does this object contain? 3.91E+27 7.81E+27 1.56E+28 O 3.12E+28
Consider the nuclear fusion reaction 3H+ 'He > 'H + 'He. Part A Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. B = MeV Submit Previous Answers Request Answer Part B Compute the binding energy of the He. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Previous Answers Request Answer Part C Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Request Answer Part D Compute the binding energy of the "He. Express your answer in mega-electron volts to three significant figures. B = MeV
Q3: The table shows two isotopes of potassium and two isotopes of calcium. Type of emission Mass of neutral atom / u Number of electrons Number of protons Number of neutrons Total mass/u Mass defect/ u Binding energy / J Mass of the electron = 0.000549 u Mass of the proton = 1.007276 u Mass of the neutron = 1.008665 u TI ***** LEG 39K Stable 38.96371 SE nda 42K ß decay a) Use data about potassium-42 to explain the concept of mass defect. 3000 41.9624 19 19 23 42.34797 0.38557 5.76 x 10-11 De RAP 39 Ca ßt decay 38.9707 440 **** ****** D 42 Ca stable 41.95863
O Two deuterium atoms (H) react to produce tritium (H) and hydrogen (H) according to the following reaction: + + |H 2.014 102 u 2.014 102 u 3.016 050 u 1.007 825 u What is the energy (in MeV) released by this deuterium-deuterium reaction?
234 has an time constant 3.13 x105 years. How long will it take to reduce a sample of 6,542 234U atoms to 3,646 atoms? Express your answer in 105 years. 000 000 F4 F5 MacBook Air F6 an F7 DII F8
A free neutron decays into a proton plus an electron: n -> p + e- . This is called beta decay. a. Is energy released or absorbed in this reaction? b. Calculate the energy.
6. One form of nuclcar radiation, beta decay, occurs when a neutron changes into a proton, an clectron, and a neutral particle called an antineutrino: n → p+ + e¯ +Ve, where ve is the symbol for an antincutrino. When this change happens to a neutron within the nucleus of an atom, the proton remains behind in the nucleus while the clectron and neutrino are ejected from the nucleus. The ejected electron is called a beta particle. One nucleus that exhibits beta decay is the isotope of hydrogen ³H, called tritium, whose nucleus consists of one proton (making it hydrogen) and two neutrons (giving tritium an atomic mass m = 3u). Tritium is radioactive, and it decays to helium: 3H → *He + e¯+Ve• (a) Is charge conserved in the beta decay process? Explain. (b) Why is the final product a helium atom? Explain. (c) The nuclei of both 3H and 3He have radii of 1.5 x 10 15 speed must the electron be ejected if it is to escape from the nucleus and not fall back? m. With what minimum
.A nuclide 239P decays into 4Q by emitting two alpha particles and one positron. What are the values of A and Z? A. A=201, Z=76 C. A=202, Z=78 B. A=202, Z=76 D. A=206, Z=78
The indium isotope 115/49 I n captures an electron and becomes the cadmium isotope 115/48 C d, as shown in the nuclear reaction below. 115/49 I n + ? ⟶ 115/48 C d What kind of particle is emitted in this decay, as denoted by the question mark?