substance to decay while decreasing by ½. 2) Spontaneous fission is a type of radioactive decay in heavy elements with unstable nuclei being split into more stable smaller fragments 3) Two important application of neutron radiation are neutron therapy for tumors/cancer and neutron bombs for defense. 4) Ionization radiation is radiation with rays with enough energy to allowing ionization in the medium it goes through. 5) Fission typically releases two hundred million eV from each reaction. Fission
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Chapter 5 "Energy Resources" Formal Assessment Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The process of burning a fuel to change chemical energy into thermal energy is called a. heat. b. electricity. c. energy. d. combustion. ____ 2. The three major fossil fuels are coal‚ oil‚ and a. wood. b. natural gas. c. uranium. d. electricity. ____ 3. Fossil fuels are considered nonrenewable resources because they
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cell or organism would execute homeostasis‚ as well as look for DNA. These are all properties that all living things share. 2. What happens if an atom of an element gains or loses electrons? What happens if an atom of an element gains or loses neutrons? What happens if an atom of an element gains or loses protons? Atoms in which the number of
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full reaction energy of the nuclear transition. In order to preserve the conservation of energy‚ conservation of momentum‚ and conservation of angular momentum (spin) in beta decay‚ it was done by adding an undetected particle that Pauli termed a "neutron" to the proton and electron already known
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world would break apart and float aimlessly into oblivion. The strongest of the four fundamental forces of nature is the strong nuclear force‚ also called the strong interaction. This force acts against the forces of repulsion of protons and binds neutrons and protons to contain them inside the atomic nuclei. This is how the nucleus of the atom is formed. The force is so strong that the minute particle that carries the force is called “gluon‚” which is means “glue” in Latin. The strength of this force
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The element of Nickel is number 28 which means it has 28 electrons and 28 protons (this is the atomic number). The atomic mass of Nickel is 58.71 g.mol^-1 which means that there are 30.69334 neutrons since you subtract the number of protons from the atomic mass to get the number of neutrons. The electronegativity of Nickel is 1.8 on the Pauling scale; this is the tendency of Nickel to attract a bonding pair of electrons. The density of Nickel is 8.9 g.com^-3 at 20°C and the melting point is 1454
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that his second law that all atoms of the same element are the same is false because today we have found that there are other kinds of atoms called isotopes. An isotope is an atom that has the same amount of electrons and protons‚ but it has more neutrons that increase its atomic mass. Some examples of isotopes are Carbon 12‚ carbon 13‚ carbon 14‚ Uranium (234‚ 235‚ and 238) and lithium (6‚ 7). Carbon 14 is especially useful because we know its rate of decay and can use to find how old an object is
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1. Electron is a negatively charged particle present in an ----------. (a) Atom (b) Proton (c) Neutron (d) None of the above 2. The formula 2n2 determines the____________ that can be accommodated in any level. (a) Electrons (b) Atoms (c) Neutrons (c) Protons 3. __________ are used to get a strong magnetic field. (a) Superconductors (b) Semiconductors (c) Magnetic field (d) None of the above 4. -----------------are used in heating elements‚ precision instruments‚ incandescent lamps‚ and motor
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information about the microscopic structure of molecules‚ atoms‚ and nuclei. In addition to various forms of light (gamma rays‚ x-rays‚ visible light‚ infra-red‚ radio waves)‚ even high-energy atomic and sub-atomic particles (electrons‚ protons‚ and neutrons) can be used in diffraction studies. If one wants to know something about the wavelengths that make up a particular type of radiation (i.e.‚ the spectrum of radiation)‚ one could use an object such as simple diffraction parallel-slit grating in
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utilized in the production of nuclear weapons. Because uranium is radioactive‚ it is constantly emitting particles and changing into other elements‚ like thorium. Uranium has a well-established radioactive decay chain. U-238 and U-235 (which has 143 neutrons) are the most common isotopes of uranium. Uranium naturally includes all three isotopes (U-238‚ U-235‚ and U-234) [3]. Once Uranium enters your body in any way‚ it is widely distributed. Bone acts as a reservoir for the metal. Uranium produces chemical
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