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- How did all of the heavy elements on earth get here?
Instead of reasoning that the elements reached earth through an asteroid or supernova flare (s), it seems more probable that earth is a burnt out star, that has gone through all the phases of a star and therefore has ample amounts of elements of the heavier variety
- observational astronomy - Origin of heavier elements on earth . . .
The following periodic table of elements (from Wikipedia), shows the elements color coded according to their source of creation All the elements on Earth were created by various stars that seeded our region of the universe prior to the formation of our solar system
- nuclear physics - What is the origin of elements heavier than iron . . .
The r-process is almost exclusively responsible for elements heavier than lead and contributes to the abundances of many elements between iron and lead Rapid neutron capture will "stall" once nuclei are produced with magic numbers of neutrons (50, 82, 126) in closed shells
- Why didnt heavier elements settle at the core of the solar system?
As the solar system formed, why didn't all of the heavier elements such as iron, collect where the sun is leaving the lighter elements in the outer solar system?
- If the gravity at the center of the Earth is zero, why are heavy . . .
If gravity is greatest at the center of the earth, as classical education tells us, why is the core not dominated by the heaviest elements (elements heavier than iron)? I am a person reasonably familiar with technical terms, but I am not a physicist so I will appreciate answers that don't rely on equations
- Why are stars made from hydrogen and helium and not other elements?
My understanding is that the stars are primarily made up of hydrogen and helium Why do those elements end up in stars and other heavier elements make up the planets?
- Is there a connection between the core of the earth and heaviest . . .
Heavier elements are created by the supernovae I am not sure about Ni, but it is close to iron in periodic table The composition of a planet depends on composition of the cloud where it forms, and clouds are not homogenous I am not sure why some heavy elements stayed on the surface of Earth
- Why is the composition of the sun so distinct from that of earth?
The regions closer to the Sun, where the Earth was forming, got hot enough that light elements like hydrogen evaporated from the planetesimals Left behind were heavier elements like oxygen, silicon (which make up most rocks) and iron The lighter elements ended up further out, which is why Jupiter has a hydrogen-rich atmosphere
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