An element with an atomic mass of 57 has an isotope with an atomic of mass 58. The source of this additional mass is

Q: What is alpha decay?

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Q: Why doesn’t the repulsive electric force of protons in the atomic nucleus cause the protons to fly…

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Q: 3. Tungesten-184 emits an alpha particle and the new nucleus formed is: Rehinuim-188 Iridium-184 O…

A: If an alpha particle is formed, the mass of the parent element decreases by 4. Hence, 184 must be…

Q: After a nucleus undergoes four gamma decays, its’ atomic number   A. decreases by 8   B. does…

A: Given data: Nucleus undergoes four gamma decays Required: Change in atomic number of nucleus

Q: Give the number of protons and the number of neutrons in the nucleus of the following isotopes:…

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Q: sample of radioactive material starts with 0 grams. After 3 half lives have passed, how much…

A: Half-life is the amount of time it takes for one half of a sample of a radioactive isotope to decay.…

Q: Cs-137 has a half-life of 30 years. Approximately how much time is required for the radiation of…

A: Given Data : The half-life of Cs-137 is given as t12=30 years

Q: Is this statement true? "An electron takes various pathways from a beta-decaying nucleus to a…

A: The Geiger counter detects alpha and beta particles and gamma radiations.

Q: How is a strong nuclear force is transmitted between a proton and neutron?

A: Nuclear force: Nuclear force is one of the fundamental interaction. It is the strongest of all.…

Q: Radium-226 is a common isotope on Earth, but it has a half-life of about 1600 years. Given that…

A: The decay chain of Uranium-238 gives Radium-226 which is stable isotope. The half-life of…

Q: How does the rate of decay of a long-half-life material normally compare with the rate of decay of a…

A: Decay of a material is exponentially related to its half-life.

Q: Why do different isotopes of the same element have the same chemical properties?

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Q: An isotope has a half-life of 3 days. What percent of the original material will be left after: a) 6…

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Q: Which radioactive isotopes are produced when Uranium 238 decays?

A: When uranium 238 decays, it decay by emitting alpha particle.

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

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Q: What element results if two protons and two neutrons are ejected from a radium nucleus?

A: The remaining nucleus is that of Radon with atomic number 86.The transformation of one nucleus of…

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: An isotope of iodine 1311, which has an eight-day half-life, is used in nuclear medicine. A sample…

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Q: Calculate the binding energy per nucleus of Iron-50.(Iron-56 has an atomic number of 26 and has a…

A: The binding energy of a nucleus is the energy that is used to keep the nucleons from breaking apart…

Q: A rock started with 4000 atoms of a parent radioactive isotope and now has 3750 daughter isotopes.…

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Q: If U-238 splits into two even pieces, and each piece emits an alpha particle, what elements are…

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Q: A sample of 1000 radioactive atoms has a 10 minute half-life. How old is the sample when 750 atoms…

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Q: The Half-life of certain radioactive sample is 30 minutes. At 2.00 PM, the decay rate is measured to…

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Q: Which element's isotope is often used to treat cancer patients?

A: The correct option is cobalt Cobalt therapy or cobalt -60 therapy is the medical use of gamma rays…

Q: If a pair of carbon atoms were fused, and the product were to emit a beta particle, what element…

A: Given, a pair of carbon atoms were fused and the product emits a beta. Thus there will be an…

Q: What element spontaneously splits into a lighter nucleus and an even lighter helium nucleus?

A: Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller…

Q: Which isotope of hydrogen—deuterium or tritium—is abundant and which is scarce?

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Q: What is a radioactive isotope

A: Required : What are radioactive isotopes.

Q: Cobalt-60 emits a negative beta particle and the new nucleus formed is: O Iron-59 Iron-60 Nickel-60…

A: Given data: Initial nucleus = Cobalt-60 emits negative beta particle Required: The new nucleus…

Q: The isotope cesium-137, which has a half-life of 30 years, is a product of nuclear power plants.…

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Q: A radioactive substance has a half life of 15 minutes. How much of a sample of this substancewill…

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Q: What is given off by beta decay?

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Q: After undergoing alpha decay, an atom of radium 226 becomes____.

A: Given:  Ra - 226  alpha decay

Q: Name two isotopes that undergo nuclear fission.

A: The two isotopes that undergo nuclear fission are Plutonium - 239 and Uranium - 235.

Q: If 10% of a radioactive material decays in 5 days, then the amount of the original material left…

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Q: Determine the nuclear composition (number of protons and neutrons) of the following isotopes. (a)…

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Q: The nucleus of a fictitious element consists of 15 protons and 16 neutrons. The mass of the…

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Q: If a sample contains 20g of an isotope that has a half life of 1000 years. How much will be left…

A: Given data:  Initial amount of sample (N0) = 20 g Half life (T1/2) = 1000 years Required: Remaining…

Q: What is given off by gamma decay?

A: In a gamma decay, unstable nuclei undergo decay to emit excess energy in the form of gamma rays.

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.