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Q: Fusion ends when high mass stars fuse silicon into which element?
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How does fusion differ for high mass stars and low mass stars?

Nuclear Fusion in a Giant Star involves Helium being fused into a hydrogen shell that surrounds the core, and Nuclear Fusion in a Main-Sequence star involves Hydrogen being fused into Helium to produce Energy inside of the core.


How does carbon release energy fusion or fission?

Two carbon-12 nuclei can fuse into a magnesium-24 nucleus in a star with enough pressure and temperature. Two magnesium-24 nuclei can fuse into a chromium-48 nucleus in a star with enough pressure and temperature. Chromium-48 decays by K capture with a half life of 23.5 hours to vanadium-48. Vanadium-48 decays by Beta+ emission or K capture with a half life of 16.1 days to titanium-48. Two titanium-48 nuclei can fuse into a ruthenium-96 nucleus in a star with enough pressure and temperature. In this chain, fusion ends here and the product is stable. In the most typical fusion chain from carbon upward in stars it is more complex and the final product is a mixture of iron and nickel isotopes that are all stable and fusion ends there. The difficulty in getting to carbon in the first place is that helium-helium fusion is a "forbidden" reaction, only the rare helium-helium-helium fusion reaction which is allowed at high enough density, pressure, and temperature can produce carbon. This is the fusion reaction that powers red giant stars and is why they grow so gigantic and their photosphere is so far from the energy source that it cools to red heat.


You are having problems removing the screws that fasten the wires in your stove to the bake element is there anyway to loosen the screws as they are really stuck?

If you are changing the element just cut the wire ends off and install new wire ends. The new element should have new screws with it. you will need a crimping tool to install the new terminal wire ends.


Is it true for ions of nonmetals the name of the ion is the same as the name of the element?

No: Anions of nonmetals end in the suffix -ide, but no element name ends in this group of letters.


What element from the periodic table has 3p- for an electron configuration?

Al, Si, P, S, Cl and Ar have 1, 2, 3, 4, 5 and 6 electrons respectively in the 3p (valence orbitals). However all elements after Argon have completely filled 3p orbitals though 3p is not the valence orbital.