When a particle of matter meets a particle of antimatter, they a. turn completely into energy. b. turn completely into matter. c. turn completely into antimatter. d. turn completely into neutrinos. e. do nothing.
Q: the temperature is 300 K, the half-life of X is 21 days. If the temperature is increased to 600 K,…
A:
Q: . Complete the following nuclear reaction:
A: 8O16 + 2He4 ------> ......... + 10Ne19 In left hand side Total number protons 8+2 =10 Total mass…
Q: A radioactive material initially is observed to have an activity of 1000 decays per second. If 9.0…
A: Given : A0 = 1000 decays/sec A = 100 decays/sec t = 9 hours
Q: Let's assume a human is made of N =3.5 x 1027 neutral atoms of carbon C, (a pretty bad…
A: According to the question, the human is made of N=3.5×1027 atoms of C6612 mass of C6612 is m=12u…
Q: Radon, 222Rn , has a decay constant of λ = 2.1 x 10-6 s-1. What is its half-life? Select one: a.…
A: The Relationship between decay constant and half life of an radio-active isotpe is given by…
Q: Positron decay is usually associated with neutron rich radionuclides. a. True b. False
A: Positron emission, also known as beta plus decay or β+decay, is a kind of radioactive decay in which…
Q: 17. When an atom is a gamma ray emitter, the atom releases: 18. The time it takes for the unstable…
A: Answer 1) During the gamma ray emision tha nucleus emit high energy photon. High energy photon is…
Q: 1. What are the names of the elementary particles and the atoms that are produced when 4 hydrogen…
A: We need to find the atoms when 4 hydrogen atoms fused together.
Q: Synchrotron radiation is caused by a. slow-moving neutrons. b. gamma radiation. c. alpha…
A: Here, we look at where synchrotron radiation is observed.
Q: 4. Two parallel conducting plates are separated by 3 mm and the space between them is filled with a…
A: Given: E=2×106Volts/md=3mmk=6
Q: c).i). A 50 grams in radionuclide decays 45 grams in 240 years. What is the half- life of the…
A: Detailed solution of this question is given in below steps.
Q: 2. What is Q-value of the nuclear reaction? Drive the formula for threshold energy.
A: The nuclear reaction is defined as the change in state of a atom when some energetic particles…
Q: A nuclear particle theory predicts the existence of massive particles that interact weakly with…
A: The massive particles that interact weakly with normal matter are classified as WIMPs as per…
Q: b). i). What is meant by Time dilation? ii). Hence, a clock on a space rocket ticks off at a time…
A:
Q: 90. An uranium nucleus (at rest) undergoes fission and splits into two fragments, one heavy and the…
A: Mass of uranium = M Initial velocity of uranium = 0 m/s Let mass of smaller fragment = m Let the…
Q: 6. The particles in the nucleus that have a positive charge are the b. neutrons a. electrons c.…
A: Part (6):Introduction: There are three fundamentals particles are present in the atom electrons,…
Q: 2. Calculate energy release in fusion of 1ºB. (Eb for 1ºB is 64.751 MeV and Eb for 20N is 160.645…
A: Fusion is the process by which two light nuclei combine to form a heavy nucleus. The energy released…
Q: 2 protons released in what step of solar nuclear fusion? a. step 1 b. step 2 c. none of the steps d.…
A: Answer:- (d) step 3 2 protons released in step 3 of solar nuclear fusion. Because Two protons…
Q: A heavy hydrogen nucleus with one proton and one neutron is called a. bi-hydrogen. b. tritium.…
A: With one proton and one neutron in nucleus we get isotope of hydrogen which is called
Q: Which of the following about the gamma ray is true? a. It carries a positive charge b. It can be…
A: Which of the following about the gamma ray is true?a. It carries a positive charge b. It can be…
Q: 4. Consider four separate (unbound) nucleons (two protons and two neutrons) vs. a Helium nucleus…
A: Sum of the mass of the four unbounded nucleons are more than the mass of the resulting helium nuclei…
Q: Two particles, an electron and a positron collide each other. What is the most possible event? A.…
A: When the electrons and positrons collide each other, the process is called annihilation.
Q: What is "half-life"? Select one: a. The time needed for half of the radioactive atoms in a sample to…
A: Half-life is the duration of time needed for decay of the half of the radioactive atoms in a given…
Q: A particle at rest decays into two other particles, which move away from the site of decay. Which of…
A: Given, A particle is decaying which is in rest
Q: 2. What is fission? a. What is it used for? b. What is the beginning atoms? c.…
A: Fission occurs when a neutron slams into a larger atom, forcing it to excite and spilt into two…
Q: Match the nuclei described below with their corresponding isotope names.
A: Number of Nucleons =no. Of proton + no. Of Neutron This is helpful to find the matching isotope.
Q: Half - Life Practice %3D 2. If you have 100 grams of a radioactive isotope with a half-life of 10…
A: Given, Initial mass=100 kg as we know that after 1 half year it will become half Half year is given…
Q: Positrons created in the first reaction of the proton-proton chain combine with what particles to…
A: The proton-proton chain or the p-p chain refers to the chain of nuclear reactions which essentially…
Q: A nucleus of phosphorus (P) decays to a nucleus of silicon (Si) with the emission of particle X and…
A:
Q: A human skeleton found at an archeological site is found to have on 1/10 the amount of Carbon-14 one…
A: Given, N= 1/10=0.1 No= 1 T= 5730years We know that, N= No(1/2)t/T
Q: How many neutrons are emitted when a uranium-238 nucleus (Z = 92) is bombarded with a deuteron (2…
A: Parent nuclei = Uranium (Z=92 , A=238) Bombarding atom = Deutron (Z=1 , A=2) Daughter nuclei =…
Q: A beta particle is A.a form of highly penetrating radiation . B.an electron emitted by a larger…
A: The transformation of a neutron into a proton and an electron (followed by the emission of the…
Q: Which of the following isotopes would be least likely to undergo positron emission? A. 118Sn D. 96Ru…
A: Positron emission, beta plus decay, or β+ decay is a subtype of radioactive decay called beta decay,…
Q: If a 10-gram sample of a radioactive substance has a half-life of 6000 years, how much would be…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: A nuclear isotope has a mean lifetime of 76.7 s. What is the half life of this isotope? Number If…
A: a) Given, mean life time, τ = 76.7 s and the relation between mean life time and half life T1/2 is,…
Q: 5. A radioactive material has a half-life of eight days. How long will it take the material to be…
A: Let initial number of nuclei in the radioactive material be No and it is given that half life of the…
Q: Element Photon Isotopes Nuclear fission a. Atoms with same atomic number but different mass numbers…
A: Solution:-
Q: certain radioactive material has a half-life of 40 years. How many years will it take the mass to be…
A:
Q: 11. Is the reaction e¯ +p → n +ūe possible? Explain.
A: 11. Given, The reaction is e-+p→n+ν_e Checking conservation e- p → n ν_e baryon number…
Q: Theoretical massive particles that weakly interact with other matter are classified as a. MACHOs.…
A: Theoretical massive particles that weakly interact with other matter are classified as WIMPs. These…
Q: When a π- decays, the products may include: a. A positron. b. A muon. c. A proton. d. All of the…
A:
Q: A certain watch’s luminous glow is due to zinc sulfide paint that is energizedby beta particles…
A: Given, a certain watch’s luminous glow is due to zinc sulfide paint that is energized by beta…
Q: What is a neutrino? Group of answer choices A neutral particle in the nucleus. An elusive particle…
A: Neutrino: It is an elementary particle. Since neutrinos are fundamental particles, they are not…
Q: The radioactive isotope 3° Ra has a half life of 1599 years. After 1000 years there is 3.5 grams of…
A: Radioactive Decay Law The rate of decrease in the number of radioactive nuclei is directly…
-
When a particle of matter meets a particle of antimatter, they
a. turn completely into energy.b. turn completely into matter.c. turn completely into antimatter.d. turn completely into neutrinos.e. do nothing.
Step by step
Solved in 2 steps