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on sun nuclear fusion processing and H changing to He .but earth contain havier atom then He.

2006-10-26 06:41:17 · 13 answers · asked by vikastherealman 1 in Science & Mathematics Astronomy & Space

13 answers

What the questioner is asking is: how come we have heavier elements than helium on earth if the raw material of the earth comes from the sun (which only fuses hydrogen to make helium) via the planetary nebula that it once ejected? How come in particular, do we have any carbon, the basis of life (we are a carbon-based life-form!)

And it is a good question. It needs explaining. Carbon is the 6th most abundant element in the universe, so where did it all come from?

The short answer is that the Sun has not existed since the Big Bang and the start of the universe (13.7 billion years ago). Rather, it only came along, two-third of the way into that history: the Sun is only 4.6 billion years old.

In the early universe, there was only hydrogen and helium, tiny traces of Lithium (element no 3). The first stars that formed (population III) were massive and short-lived. A relatively high percentage (as compared to current stars) turned into supernovae. In the process nucleosynthesis occurred, which can create elements up to and beyond Uranium incredibly rapidly, These "metal-rich" supernova remnants got swept up and recycled in the formation of Population II stars and when they died their remnants became part of Population I stars, the third generation of stars, of which our sun is a member.

In the latter stages of a Main Sequence star's life cycie, when it runs out of hydrogen to fuse, it swells to a red giant for about a hundred million years and fuses helium to make oxygen, carbon, nitrogen and other elements of low atomic number. At a later stage, still, fusion of these products of helium fusion can create elements up to and including lead (element 56), but not beyond it.

So we are fortunate in only coming on stage in Act III of this cosmic drama when elements up to lead have already been created in fusion reactions in the core of stars long since dead and elements beyond lead have already been created in nucleosynthesis in the long-gone explosions of supernovae. And to have an inheritance of these elements in the raw materials that went into forming our sun and its protoplanetary nebula.

2006-10-26 06:54:20 · answer #1 · answered by Anonymous · 5 0

Earth is as much part of the sun as butter is part of butter milk. The sun, earth & other planets were made from the same collection of mass. The sun has greater mass and hence the mass caused & sustained nuclear reactions to in the sun. hence it became a star. Earth had too less mass to sustain fusion reactions and hence matter was quickly converted to heavier elements and earth cooled down. At the begining of the universe there was only hydrogen no heavier elements. I would suggest a reading on the origin of the universe for better understanding

2006-10-26 22:40:27 · answer #2 · answered by si11y13yte 2 · 0 0

All of the matter heavier than H in our solar system was created in the nuclear reactions of a star, but not our sun. The heavier elements were created in an older supernova star before it finally exploded. Later this matter collected to form the planets in our solar system and enough hydrogen collected at the center of our solar system to kick of a nuclear reaction and give birth to our sun.

H to He is not the only nuclear reaction possible. At higher temperatures and pressures any element can be created via a nuclear reaction.

2006-10-26 06:49:13 · answer #3 · answered by shankar s 1 · 0 0

All of the matter heavier than H in our solar system was created in the nuclear reactions of a star, but not our sun. The heavier elements were created in an older supernova star before it finally exploded. Later this matter collected to form the planets in our solar system and enough hydrogen collected at the center of our solar system to kick of a nuclear reaction and give birth to our sun.

H to He is not the only nuclear reaction possible. At higher temperatures and pressures any element can be created via a nuclear reaction.

2006-10-26 06:47:55 · answer #4 · answered by Anonymous · 1 0

one reason behind ur quote may be that since all of the astronomical bodies were one single hot mass which then underwent explosion to form the present day planets ,stars, asteroids etc.
since sun is the bigger entity and both the sun and the earth have basically the same originwe say that earth is a part of sun.
literally it may not be fit to digest but when we trace the history behind the formation of the universe, we can it valid.

2006-10-26 07:08:34 · answer #5 · answered by K R 2 · 0 0

Earth is receiving part of the sun in the form of energy and rays and ions so there is some part of Earth that is from the Sun. I am not exactly sure of what you mean but yes we receive the Sun energy and rays and ions from Sun-bursts.

2006-10-26 06:47:42 · answer #6 · answered by FrogDog 4 · 0 0

according to my knowledge,
The SUN which is the celestial body made up of highly radioactive elements. due to these elements they undergo nuclear fission reaction. Because of this compressive action the molecules tried to escape from one another. By this the celestial sun attended the action of bursting. thus how the EARTH and other planets have formed...............

2006-10-26 20:32:22 · answer #7 · answered by elam parithi 1 · 0 1

Earth is part of Solar System

2006-10-26 06:43:02 · answer #8 · answered by Anonymous · 0 0

Heavier elements are created in supernova explosions. At least that is the current theory.

2006-10-26 06:56:22 · answer #9 · answered by campbelp2002 7 · 0 0

because earth rotates to sun ,it is suppose to be

2006-10-26 08:30:51 · answer #10 · answered by ansa 2 · 0 0

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