0
What else can I help you with?
Why does a star's hydrogen supply run out?
A star's hydrogen supply runs out because of nuclear fusion in its core. As hydrogen is fused into heavier elements like helium, the star's core temperature increases, causing it to expand and cool. Eventually, the core runs out of hydrogen to fuse, leading to the star's evolution into a different phase.
Why does a star grow larger after it exhausts its core hydrogen?
When a star exhausts its core hydrogen, nuclear fusion in the core stops, causing the core to contract and the outer layers to expand and cool, making the star grow larger. The increase in size is due to the star transitioning into the red giant phase as it starts burning hydrogen in a shell surrounding the core.
What is the first element that is converted in a star's core?
The first element that is converted in a star's core is hydrogen. Through nuclear fusion, hydrogen atoms fuse together to form helium, releasing energy in the process. This fusion process is what powers a star and allows it to shine.
What is helium flash?
A helium flash occurs because the core of the star is in what is known as a "degenerate" state. This means that the core has contracted so much that the pressure of the electron shells of the atoms making up the core prevent the core from contracting further. Under normal gas conditions (i.e. NOT a degenerate state), an increase in the temperature of the core would cause an increase in core pressure resulting in the core expanding and the temperature then dropping. This state is known as hydrostatic equilibrium. With a degenerate core, the temperature increases but the pressure doesn't. This extra energy ignites the helium creating run-away nuclear reactions. This is what is referred to as a "helium flash."
The convention that causes earths magnetic field happens in earths?
core
When the core of a star shrinks after hydrogen fusion stops the core heats up but what happens to the star?
The rest of the star expands.
What happens to Hydrogen atoms in a star's core?
its clears air
What happens when a star can't hold it's weight?
The core collapses
What happens when the outer core of a star explodes after the core collapses?
Its blown into interstellar space - to enrich and mix with the gasses already out there.
Where does hydrogen fusion occur when there is no hydrogen left in the core of a star?
If there is no hydrogen left at the core of star then hydrogen fusion cannot occur. What happens in the core of a star before that happens is that helium begins to fuse, and then the other elements going up the periodic table until carbon. And then if the star explodes into a supernova, traces of the higher elements are fused as well.
When a stars core collapses does a giant explosion happen?
Yes, if the star is massive enough when the core collapses a supernova explosion happens.
If the core temp of a star decreases what happens to the radius?
If the core temperature of a star decreases, it will contract, causing the core to become denser. This contraction may lead to an increase in temperature in the outer layers, causing the star to expand its radius to re-establish equilibrium.
When the core of a star reaches a temperatureof about 100 million degrees K something new happens in the core What is this new event?
As an average star is dying and the core is contracting when the temperature reaches 100 million Kelvin Helium atoms fuse into
What happens when a medium star's temperature reaches 200000000 degrees Celsius?
helium atoms fuse to form carbon atoms in the core of the star
What happens when a star uses its hydrogen?
When a star uses the hydrogen in its core it will start burning hydrogen in a shell around the core and become a red giant. After that the star will either collapse into a white dwarf or start fusing helium, depending on its mass.
What happens in the core that marks the birth of a star?
Nuclear fusion, converting hydrogen nuclei into helium nuclei.
What happens to the core of a high-mass star after it runs out of hydrogen?
After a high-mass star runs out of hydrogen, the core undergoes nuclear fusion of helium into heavier elements like carbon and oxygen. This process continues until iron is formed, at which point the core collapses and triggers a supernova explosion.
