An iron core cannot support a giant star becauseGroup of answer choicesiron is heavy, and settles to the earth's core.iron has a poor binding energy, and decays rapidly into lead.iron is too dense, and produces too much gravity.iron cannot fuse with other elements and produce additional energy in fusion.iron cannot fuse with any other elements at all.
Question
An iron core cannot support a giant star becauseGroup of answer choicesiron is heavy, and settles to the earth's core.iron has a poor binding energy, and decays rapidly into lead.iron is too dense, and produces too much gravity.iron cannot fuse with other elements and produce additional energy in fusion.iron cannot fuse with any other elements at all.
Solution
The reason an iron core cannot support a giant star is because iron cannot fuse with other elements and produce additional energy in fusion.
Here's why:
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Stars generate energy through a process called nuclear fusion. This process involves the fusion of lighter elements into heavier ones, releasing energy in the process.
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For most of a star's life, it fuses hydrogen into helium. As the star ages and the hydrogen supply decreases, it begins to fuse helium into heavier elements like carbon and oxygen.
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This process continues, with the star fusing increasingly heavier elements, until it begins to produce iron.
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Unlike the fusion of lighter elements, the fusion of iron does not release energy. Instead, it requires energy.
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Therefore, once a star begins to form an iron core, it can no longer generate the energy needed to support its own weight against the force of gravity.
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This lack of energy production leads to the star's collapse, resulting in a supernova explosion.
So, the correct answer is: "Iron cannot fuse with other elements and produce additional energy in fusion."
Similar Questions
What is the heaviest element directly produced by nuclear fusion in the core of high-mass stars?Group of answer choicesHeliumIronSiliconNickelCarbonGold
Why is Fe very abundant in the inner core of a dead star?*1 pointIt is due to the release of energy upon formation.It is due to the input of energy upon formation since energy of the star is already used up.It is due to energy changes upon formation.It is due to low energy requirement upon formation.
What event is believed to create elements heavier than iron?a supernova explosionthe formation of a neutron star the accretion of matter into a black holea nova outburst
Which of these supports the idea that Earth’s Core is largely liquid iron?Group of answer choicesEarth’s large mass can only be explained by large amounts of a heavy element in its interiorEarth’s magnetic field points to the presence of a metallic liquid in its interiorS-waves are absorbed as they travel through Earth’s deep interiorAll of these taken together are the basis for the present model of Earth’s Core
What do geologists look at for proof that Earth's core contains mostly iron?A.Other planetsB.CometsC.The moonD.The Sun
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