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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.
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 binding energy of deuterium?
The binding energy of deuterium, which is an isotope of hydrogen, is approximately 2.22 million electron volts (MeV). This energy represents the amount of energy required to break apart the nucleus of a deuterium atom into its individual protons and neutrons.
What is the mercury's motion particles as it's heated from 45 degrees Celsius to 365 degrees Celsius?
As mercury is heated from 45 degrees Celsius to 365 degrees Celsius, its particles will gain energy and move faster. This increased thermal energy causes the particles to vibrate more quickly and spread out, leading to an expansion in volume. At the higher temperature, the motion of mercury particles will be more rapid and chaotic compared to when it was at 45 degrees Celsius.
What is the half life of boron?
The half-life of beryllium varies according which isotope of this element we consider. There are a number of isotopes, and half-lives range from a small fraction of a second to many thousands of years. Use the link below to see a list of the isotopes of beryllium and their half-lives.
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 are the two most common isotopes of beryllium?
The two most common isotopes of beryllium are beryllium-9 and beryllium-10. Beryllium-9 is stable and more abundant, while beryllium-10 is a radioactive isotope with a half-life of about 1.4 million years.
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.
If a soil sample is 60 sand particles and has 30 millon particles of soil how many of those soil particles are sand?
If the soil sample has 30 million particles of soil and 60 of those particles are sand, then the number of soil particles that are sand is 60. Sand particles represent 0.000002% of the total particles in the soil sample.
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
What is the proton-proton chain?
Well, there are 4 branches of the Proton-proton chain. But over all in this reaction, 4 Hydrogen's (protons) are turned into a helium atom (2 protons and 2 Neutrons) pp Branch I: Two protons collide, one of the protons turn into a neutron, this releases a positron and a neutrino. The result is a Deuterium, which is just 1 proton and 1 neutron bound together. The the positron that was released by this reaction almost immediately annihilates with an electron, giving of 2 gamma rays. The Neutrino escapes the star, carrying away some energy. Next, the Deuterium collided with another proton, so now we have 2 protons and 1 neutron bound together, this is a Helium-3 isotope. This reaction releases a gamma ray. The Helium-3 will now collide with another Helium-3 (a total of 4 protons and 2 Neutrons), 2 of the protons are released to start the whole process over again, so your left with a regular Helium atom (2 protons and 2 Neutrons). This branch of the PP chain happens most frequently in the sun, about 86% of the time. This branch works best at 10-14 million K. pp Branch II: This branch happens only about 14% of the time. In this branch, when the Helium-3 is made, instead of combining with another Helium-3, its combines with a previously formed Helium atom, to make a Beryllium-7 (4 Protons, 3 Neutrons), this releases a gamma ray. The Beryllium-7 now captures and electron, the Electron fuses with one of the Protons in the Beryllium-7 to make a neutron, so now we have a Lithium-7 (3 protons, 4 Neutrons), and a neutrino is released. The Lithium-7 then collided with another proton, giving a total of 4 Protons and 4 Neutrons, which is 2 Helium atoms. This branch is most dominant at 14-23 million K. pp Branch III: This branch is very rare, only happens .11% of the time. And it is most dominant at temperature exceeding 23 million Kelvin. In the Branch, the Helium-3 combines with a previously formed Helium atom, and just like in pp Branch II, this produces a Beryllium-7, releasing s gamma ray. Now this Beryllium-7 collides with another proton, making a Boron-8 (5 Protons, 3 Neutrons), this also releases a gamma ray. On the Protons in Boron-8 will now turn into a neutron, giving a total of 4 Proton and 4 Neutron, which is 2 Helium atoms. Once the Proton convert to a neutron, it releases a positron, a Neutrino and another gamma ray.
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.
