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Shortly after the big bang, the first stars were formed - Population III stars. These comprised of nothing more than hydrogen and helium and maybe a little lithium for good measure. When these stars died, they would have exploded as massive supernova and spread the first 26 elements into the Universe.

These 26 elements would have mixed with hydrogen and helium to make the next set of stars - population II stars. Most of these stars, when they died, would have exploded as supernova, enriching the Universe with the rest of the elements.

These elements, along with even more hydrogen and helium, combined to make our Sun. Our Sun is a metal rich star or population I star.

Just in case your wondering what the next set of stars will be called, I have no idea - Population 0 maybe?

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What are some characteristics of stars that might account for the fact that some have more complex elements in their spectra?

Older age might account for it. As a star ages, it uses up the simplest elements (hydrogen . . . helium . . .) then starts fusing heavier and heavier elements. Our Sun will get to the point of fusing iron, which is pretty heavy, but the truly large stars out there will fuse elements much heavier than Iron. These heavier and heavier elements may account for some stars having more complex elements in their spectra.


What two elements are found in stars?

Hydrogen and helium are the two main elements found in stars. These elements are formed through nuclear fusion in the cores of stars, where high temperatures and pressures enable the atoms to combine and generate energy.


What chemical is more abundant the older a star is?

As a star ages, it fuses hydrogen into helium in its core. Therefore, helium becomes more abundant in older stars compared to younger stars.


Why do scientists believe that stars contain the same elements as the solar system?

Scientists believe that stars contain the same elements as the solar system because all elements in the universe are created through nuclear fusion in the cores of stars. Elements are dispersed into space when stars explode as supernovae. These elements then form new stars, planets, and other celestial bodies, resulting in the similarities in elemental composition between stars and our solar system.


Why is hydrogen and helium found in all stars?

These elements are found in are very important in each of the five stars. all five stars because the elements

Related Questions

Why do younger stars have more heavy elements?

Younger stars have more heavy elements because they form from the remnants of older stars that have already produced and dispersed these elements through processes like supernova explosions.


What are some differences between pop I and pop II stars?

Population I is younger and has more heavy elements. Population II is older and is almost entirely hydrogen and helium.


How do Population One and Population Two stars compare to each other?

Population I stars have more metals (heavier elements), and are generally younger, than the Population II stars. It is postulated that there are still older Population III stars, that have even less metals and are even older, but none have been discovered yet.


Since the Earth is made up largely of heavier elements what would you conclude about its relative age?

The earth is younger then most stars and is made up from the remains of dead stars.


What element would be more commonly found in older stars than in younger stars?

Chemicals between carbon and iron.


Compare the elements in an early prostar and those in a young star formed star dust of older stars?

In an early protostar, the dominant elements are hydrogen and helium with traces of heavier elements produced in previous stellar generations. In a young star formed from star dust of older stars, the composition will include heavier elements like carbon, oxygen, nitrogen, and iron, which were created in the cores of older stars and then dispersed into space through supernova explosions. These heavier elements enrich the gas and dust from which younger stars form, leading to a more diverse elemental composition.


How elements are formed in stars?

By nuclear fusion and neutron captureRight now the sun is fusing hydrogen into helium.Later in its life it will fuse helium into carbon.All elements are made inside stars. Massive stars are more efficient than low mass stars at making elements heavier than carbon.


Are all-stars made of similar elements?

Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.Younger stars often are made up mainly of hydrogen, perhaps with some helium. Less massive stars will only fues hydrogen into helium, so eventually they will end up having a lot of helium. More massive stars however will eventually start fusing helium to metals, i.e., heavier elements. In any case, the "metallicity" (percentage of elements heavier than helium) and the percentages of different elements should vary somewhat between different stars.


What are some characteristics of stars that might account for the fact that some have more complex elements in their spectra?

Older age might account for it. As a star ages, it uses up the simplest elements (hydrogen . . . helium . . .) then starts fusing heavier and heavier elements. Our Sun will get to the point of fusing iron, which is pretty heavy, but the truly large stars out there will fuse elements much heavier than Iron. These heavier and heavier elements may account for some stars having more complex elements in their spectra.


What two elements are found in stars?

Hydrogen and helium are the two main elements found in stars. These elements are formed through nuclear fusion in the cores of stars, where high temperatures and pressures enable the atoms to combine and generate energy.


What is the factories of elements?

If the question is where are elements made, the answer is in stars.


What chemical is more abundant the older a star is?

As a star ages, it fuses hydrogen into helium in its core. Therefore, helium becomes more abundant in older stars compared to younger stars.