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

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

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Q: The element boron absorbs neutrons very effectively, without scattering them very much. In a nuclear…

A: In nuclear fission reactions, the number of neutrons produced are in excess of the neutrons that get…

Q: ind the length of a side of a cube having a mass of 1.0 kg and the density of nuclear matter, taking…

A: Given,  mass, m = 1.0 kg density = 23 kg/m3 Volume, a3 length of side, a…

Q: What is given off by alpha decay?

A: When an atom experiences an alpha decay, it gives off an alpha particle made up of two protons and…

Q: In which of the following is it possible for an entirely new atom to form. (Mark all that apply)…

A: Given problem is based on the Nuclear Physics concept. We have asked, in which process entirely new…

Q: How many shells are represented in the presently known periodic table?

A: In the current periodic table elements may have up to seven shells, and in each shell, there are…

Q: Californium-246 is formed by bombardment of uranium-238 atoms. If 4 neutrons are also formed, what…

A: Californium-246   The atomic number, Z=98   The atomic mass, A=246

Q: Prove that alpha radiation is the emission of a helium nucleus.

A: Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha…

Q: What is the force between two protons with a charge of 1.6 × 10^-19 C if they are 5 × 10^-15 m apart…

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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: What is a fusion reaction? O The process of splitting the nucleus of an atom O The process of…

A: What is a fusion reaction?

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

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Q: A radioactive material has a half-life of 20 days. A sample of the material contains 8.0 × 101°…

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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: When a pair of hydrogen nuclei are fused to create helium, how does the mass of the resulting helium…

A: Given :  Pair of hydrogen nuclei

Q: A radioactive element has an original mass of 150 grams. How much would be left in the parent atom…

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Q: What famous equation describes the relationship between mass and energy?

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Q: The most common oxygen isotope is °0, but the rarer isotopes O and 10 of this element also exist in…

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Q: The Hydrogen 3 nucleus (also called Tritium) consists of: a) two neutrons and one proton b) two…

A: Hydrogen-3 or H13 or Tritium is a radio-isotope of hydrogen.

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: The isotope of lithium used in a hydrogen bomb is Li-6, whose nucleus contains three protons and…

A: A nuclear fusion reaction is given, the products of which will be as stated below.

Q: When a nucleus undergoes alpha decay, _____. its mass number decreases by 4…

A: Given data:  Type of decay : alpha decay Required: What change in mass number and atomic number

Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

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Q: After 90 years, 20 % of a radioactive material decays. What is the half-life?

A: Given data:   Time period, T = 90 years    Decay constant = λ   20% of radioactive material decay…

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

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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: Silver has two isotopes that are common in nature. Ag - 107 and Ag - 109. What makes these two…

A: Answer :-  Ag - 109 has two more neutrons than Ag -107. Because  Ag47107  Atomic mass = 107  Atomic…

Q: In a radioactive substance at t = 0, the number of atom is 8 x 104 . its half-life period is 3 yr.…

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Q: Choose the BEST answer to the following. When a nucleus of uranium-238 emits an alpha particle, left…

A: Uranium-238 follows the following decay equation,

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

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Q: An element with an atomic mass of 57 has an isotope with an atomic of mass 58. The source of this…

A: Isotope is a terminology given to an element that has variation in atomic mass than the same element…

Q: Find the energy needed to remove a neutron from the nucleus of the Iron-57 (Mass of: Iron-57 is…

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Q: 12. The half-life of Calcium-47 is 3.91 x 105 seconds. A sample contains 4.11 x 1016 nuclei. How…

A: GivenHalf life of calcium-47, T1/2=3.91×105 sInitially the amount of nuclie, No=4.11×1016

Q: The half-life of Carbon-14 is 11 years. How much of an initial 102 g sample will remain after 49…

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Q: High temperatures are required for controlled nuclear fusion because nuclei must O produce…

A: The Correct Answer is (b)

Q: 4. Alpha particle bombarded of nitrogen-14 to produce a proton and oxygen-17 5. Neutron bombardment…

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Q: this is one of the fundamental forces of nature that is responsible for radioactive decays in matter

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Q: 10. In the Sun, a series of nuclear reactions have the net effect of making one helium atom form…

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Q: When a nucleus undergoes beta decay, _____.   When a nucleus undergoes beta decay, _____.   its…

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