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Why is this so that million of alpha particles bombarded on beryllium will produce only 30 neutrons?
Wiki User
∙ 14y ago
I think that the effective cross section of the reaction (alpha, n) is not so great in this case.
Wiki User
∙ 14y ago
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What unlikely fusion takes place in stars that produces carbon?
The triple-alpha process involves the fusion of two helium-4 nuclei to form a beryllium-8 nucleus, which then fuses with another helium-4 nucleus to produce carbon-12. Beryllium-8 is unstable and decays pretty fast. Okay, really fast: the half-life is about 10-17 seconds. The "unlikely" part comes from the fact that the second fusion needs to happen before the beryllium can decay back into two alpha particles. This doesn't happen to any appreciable degree until the temperature hits a hundred million Kelvin or so.
How does electricity generated from nuclear energy?
By Nuclear fission,nucleus of a heavy,radioactive atom (eg-uranium,thorium,plutonium) is bombarded with low-energy neutrons to split into lighter nuclei.This generates tremendous amount of energy.This energy can be used to produce steam which turns the turbine and thus electricity is produced on a large scale. Nuclear energy produces 10 million times the energy produced by combustion of an atom of carbon from coal.
Why are electrons the only subatomic particles that can move?
The subatomic particle that can jump (technically it doesn't move, the technical term is jump since it moves so fast that it will go from one place to another without passing through the space in between) is an electron.
What is the mercury's motion particles as it's heated from 45 degrees Celsius to 365 degrees Celsius?
46 million
Describe the state of matter of mercury and the motion of its particles as it is heated from -45 degree Celsius to 356 degree Celsius?
The state of matter of mercury and the motion of its particles as it is heated from 45 degrees Celsius to 356 degrees Celsius is 46 million.
How many electrons protons and neutrons are in beryllium?
One beryllium atom has four (4) electrons, four (4) protons, and three (3), five (5) or six (6) neutrons, depending on the isotope being considered. The only stable isotope is Beryllium-9 (with 5 neutrons) but beryllium-10 (with 6 neutrons) has a relatively long half-life of 1.51 million years.
How many particles are in the world?
ten million million million million million million million particles in the world
What about the neutrino coming from space?
Neutrinos are high energy particles. Earth is bombarded with more than million neutrinos every day that pass right through the earth, and everything on it. So they are very hard to detect, but special techniques have been developed for this too.
How many particles in 28g of silicon?
10 million
What unlikely fusion takes place in stars that produces carbon?
The triple-alpha process involves the fusion of two helium-4 nuclei to form a beryllium-8 nucleus, which then fuses with another helium-4 nucleus to produce carbon-12. Beryllium-8 is unstable and decays pretty fast. Okay, really fast: the half-life is about 10-17 seconds. The "unlikely" part comes from the fact that the second fusion needs to happen before the beryllium can decay back into two alpha particles. This doesn't happen to any appreciable degree until the temperature hits a hundred million Kelvin or so.
Before forming sedimentary rock minute particles need to do this for a million years?
settle
Is carbon dioxide measured in parts per million?
Yes, Carbon dioxide levels are measured in particles of CO2 per 1 million particles of the air. For example, at the beginning of the Industrial Revolution (1700), levels were about 280 ppm (parts per million) or 0.028%. In 2013 levels reached 400 ppm (parts per million) or 0.04%.
How does electricity generated from nuclear energy?
By Nuclear fission,nucleus of a heavy,radioactive atom (eg-uranium,thorium,plutonium) is bombarded with low-energy neutrons to split into lighter nuclei.This generates tremendous amount of energy.This energy can be used to produce steam which turns the turbine and thus electricity is produced on a large scale. Nuclear energy produces 10 million times the energy produced by combustion of an atom of carbon from coal.
How many neutron's does element number 83 have?
The number of neutrons for the element bismuth can vary. The stable isotope is 209Bi, which has 126 neutrons.(It is actually slightly radioactive, but with a half-life of 10 million trillion years.)
When million of tiny drops of water around dust particles form from condensed humid air a?
clouds
When a million of tiny drops of water around dust particles form from condensed humid air a?
clouds
Why are electrons the only subatomic particles that can move?
The subatomic particle that can jump (technically it doesn't move, the technical term is jump since it moves so fast that it will go from one place to another without passing through the space in between) is an electron.
