Q: A radioactive substance has a half-life period of 30 days. What is the disintegration constant ?
A: We know thatλ=ln2T1/2Hereλ=disintegration constantT1/2=Half life of substance
Q: Q4(a) Define the following terms: (1) Mass number (ii) Isotopes. (b) (c) (i) State the equation…
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Q: The radioactive decay law is given by where N(t) = Noet 2= In(2) 11/2
A: We have given radioactive decay law. We want to linearlize the given equation.
Q: Discuss the Calculations involving Radioactive Decay and Time?
A: According to radioactive law when a radioactive sample goes through α, β, or γ decay,In given sample…
Q: The three most common forms of radiation caused by nuclear decay are
A: To rank: Penetration ability of alpha, beta and gamma
Q: 62 U) decays into a thorium nucleus ( Th) and another particle, as shown in A uranium nucleus the…
A: According to the law of Conservation of Nuclear Number, the sum of protons and neutrons among…
Q: Calculate the nucelar radius of uranium-238.
A: The destiny of a nucleus does not depend on the mass number A. Very light nuclei and heavy nuclei…
Q: Q6: A fission reactor accident evaporates 5 x 106 Ci of 90Sr (T1/2= 27.7 yr) into the air. The 90Sr…
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Q: While studying the properties of a sample of material obtained from an excavation site, you discover…
A: Use the fact that in beta decay an electron and am antineutrino are released. And in beta decay a…
Q: List at least three (3) properties of neutrons:
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Q: useful
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Q: State why the half-life of the technetium isotope (~6hrs) makes it suitable to be a tracer
A: Some radioactive isotopes like Carbon-11, Phosphorus-32, Carbon-14, Sulfur-35, Iodine-132,…
Q: (a) 212 Bi - ? + * He 83 (b) 36 95 Kr -? + e +v (c) ?- *He + 140 Ce 58 2.
A: A radioactive decay follows the conservation of charge and conservation of mass. Taking the above…
Q: List at least three (3) old, original names (derived from the first three letters of the Greek…
A: (1). alpha particles(α): These were later identified as the nucleus of the helium atom as these…
Q: How do the simulation help you understand nuclear fission?
A: Nuclear fission is the process or a reaction in which a nucleus of an atom splits into 2 or more…
Q: Discuss the relevance of nuclear reactions to our lives.
A: Nuclear reactions are very much relevant to our daily lives. Nuclear energy has important use in…
Q: Which will leak more neutrons, two separate pieces of uranium or the same pieces stuck together?
A: The uranium atom give neutrons during fission.
Q: Is carbon dating appropriate for measuring the age of materials that are a few years old? A few…
A: Carbon dating is best suited for a few thousand years as the half-life of carbon 14 is 5000 years.
Q: Why doesn’t uranium ore spontaneously undergo a chain reaction?
A: Given: Uranium chain reaction
Q: 7. The half life of Thorium is 75,000 years. How much of a 635 gram sample will be left after…
A: Half life of Thorium is , T1/2 = 75000 years Initial Quantity , N0 = 635 gram Time elapsed , T =…
Q: Discuss the merits of using high energy electrons to determine nuclear radii rather than using alpha…
A: Electrons are not subject to the strong nuclear force so electron scattering patterns are easier to…
Q: Astatine-220 releases an alpha particle. What element results, and what is its mass number?
A: Parent nuclei = Astatine - 220 Atomic number = 85 atomic mass = 220 u Products after decay Alpha…
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