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Is nuclear decay spontaneous or artificial?
Matter can be made to undergo nuclear decay in reactors, but it is a process that occurs spontaneously in nature.
Why do unstable nuclei undergo nuclear decay?
The simple answer is to release excess energy and thus become more stable.The full answer requires some understanding of Quantum Mechanics, as it is a quantum process and even though an atom has excess energy to release its current state may be one that Quantum Mechanics prohibits (or encourages) certain changes from occurring.
What radioactive decay processes have no transmutation?
Only gamma, it is the process by which a metastable excited nuclear isomer of an isotope relaxes down to the ground state of the same isotope. Some metastable states must undergo multiple gamma decays through less excited metastable states to reach the ground state.
Does silicon undergo radioactive decay?
The 3 isotopes that make up all naturally occurring silicon (28, 29, 30) on earth are all stable and thus do not undergo radioactive decay. But other silicon isotopes that are lighter or heavier can be produced by particle accelerators, nuclear reactors, nuclear explosions, or rarely cosmic rays do undergo radioactive decay via either -Beta, +Beta, or Gamma emission depending on isotope.Silicon does exist in space near very active stars, supernovas, etc. in the form of isotopes that undergo radioactive decay.The longest lived silicon isotope (32) that will undergo radioactive decay, has a halflife of roughly 700 years and thus will effectively completely decay to stable sulfur-32 in less than 4000 years. All other silicon isotopes that undergo radioactive decay have halflives so short that they finish decaying to stable isotopes of other elements in much less than a single day.
What is allopatric evolution?
think Darwin's finches and galapagos tortoises... speciation that occurs when biological populations of the same species become isolated due to geographical changes such as mountain building or social changes such as emigration. The isolated populations then undergo genotypic and/or phenotypic divergence as: (a) they become subjected to different selective pressures, (b) they independently undergo genetic drift, and (c) different mutations arise in the populations' gene pools.[1]
What is the process in which substances undergo chemical changes called?
chemical changes
Is nuclear decay spontaneous or artificial?
Matter can be made to undergo nuclear decay in reactors, but it is a process that occurs spontaneously in nature.
What process do frogs undergo that physically changes them from from a tadpole to an adult tetrapod?
metamorphosis
What happens when two light elements collide to undergo nuclear fusion?
When two light elements collide to undergo nuclear fusion, they combine to form a heavier element and release a large amount of energy in the process. This is the same process that powers the sun and other stars.
What process do frogs undergo that physically changes that from a tadpole to an adult tetra-pod?
metamorphosis
Which substance is most likely to undergo nuclear fusion?
Hydrogen is the most likely substance to undergo nuclear fusion. In the core of stars, hydrogen nuclei combine to form helium through the fusion process, releasing vast amounts of energy in the form of heat and light.
What is the radioactive metal used in nuclear reactor?
The radioactive metal used in nuclear reactors is uranium. It is commonly used as fuel in nuclear reactors due to its ability to undergo nuclear fission, releasing large amounts of energy in the process.
Does all elements undergo nuclear decay?
No.
What is energy produced by splitting the nuclei of certain elements?
Nuclear energy is produced by splitting the nuclei of certain elements in a process called nuclear fission. This process releases a large amount of energy in the form of heat, which can be used to generate electricity in nuclear power plants. Examples of elements that can undergo nuclear fission include uranium and plutonium.
What is the process of a solid turning into a gas is called?
When a solid changes state directly into a gas, we say it will sublime, or undergo sublimation.
What is a giant ball of hot gases that undergo nuclear fusion?
A star is a giant ball of hot gases that undergo nuclear fusion in its core. The intense pressure and temperature at the core of a star cause hydrogen atoms to fuse together to form helium, releasing a tremendous amount of energy in the process.
The process in which arthropod larvae that don't resemble the adults undergo dramatic changes before becoming adults is known as?
Complete Metamorphosis
