Why stars turn hidrojene to helium? do they have to do that?then what happens to helium?

Question

i know that atoms around us was made in stars turned simplest atom or proton whic is hidriojene into connected more protons or atoms like heavy metals.

Answer 1

Hydrogen gets turned into helium, and the helium is fused to make heavier elements.

By the time iron is formed, it requires a bigger nuclear fusion reactor to make, and that reactor is what we call a super nova. Since a large part of our bodies (and our planet) are formed from heavier elements, it's likely that we all trace our physical roots back to the very same super nova.

Cool concept, eh?....

Answer 2

It's a nuclear fusion process, caused by the intense heat as all the hydrogen compresses under gravity... At about 7million degrees K, the hydrogen fuses to make a heavier element - Helium - and that process releases energy in the form of light, more heat and radio waves.

This process has to happen because of the temperature.

What happens to the helium depends on how hot the star is - if it's hot enough, the helium can also be fused into carbon. If it's not, the helium hangs around to make up the mass of the star and stops it dispersing.

Answer 3

turning of hydrogen to helium is known as nuclear fusion and stars turn hydrogen to helium as it emmits tremendous ammunt of energy in the form of heat and light.

yes they have to do that.

hellium then fuses to form berillium-8 which is unstable and redilly fuses with hellium to form carbom-12if further energy is there then it further react with hellium to form oxygen-16

Answer 4

Stars are giant nuclear reactors. In the center of stars, atoms are taken apart by tremendous atomic collisions that alter the atomic structure and release an enormous amount of energy. This makes stars hot and bright.

Nuclear fusion is an atomic reaction that fuels stars. In fusion, many nuclei (the centers of atoms) combine together to make a larger one (which is a different element). The result of this process is the release of a lot of energy (the resultant nucleus is smaller in mass than the sum of the ones that made it; the difference in mass is converted into energy by the equation E=mc2).

Stars are powered by nuclear fusion in their cores, mostly converting hydrogen into helium.

The production of new elements via nuclear reactions is called nucleosynthesis. A star's mass determines what other type of nucleosynthesis occurs in its core (or during explosive changes in its life cycle).

Small stars: The smallest stars only convert hydrogen into helium.

Medium-sized stars (like our Sun): Late in their lives, when the hydrogen becomes depleted, stars like our Sun can convert helium into oxygen and carbon.

Massive stars (greater than five times the mass of the Sun): When their hydrogen becomes depleted, high mass stars convert helium atoms into carbon and oxygen, followed by the fusion of carbon and oxygen into neon, sodium, magnesium, sulfur and silicon. Later reactions transform these elements into calcium, iron, nickel, chromium, copper and others. When these old, large stars with depleted cores supernova, they create heavy elements (all the natural elements heavier than iron) and spew them into space, forming the basis for life.

Stars expand as they grow old. As their core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool, and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. A star's life span and eventual fate are determined by the original mass of the star.

Life span:

The most massive stars have the shortest lives. Stars that are 25 to 50 times that of the Sun live for only a few million years. They die so quickly because they burn massive amounts of nuclear fuel.

Fate of a Star:

A star will become either a black dwarf, neutron star, or black hole, depending on how massive it was. .

Sun-like Stars (Mass under 1.5 times the mass of the Sun) --> Red Giant --> Planetary Nebula -->White Dwarf --> Black Dwarf

Huge Stars (Mass between 1.5 to 3 times the mass of the Sun) --> Red SuperGiant --> Supernova --> Neutron Star

Giant Stars (Mass over 3 times the mass of the Sun) --> Red SuperGiant --> Supernova --> Black Hole

Answer 5

The word you're looking for is "hydrogen".

Nuclear fusion in the core of stars is responsible for the production of elements from helium up to iron.

Elements with atomic numbers higher than iron's are formed in supernovae, or stellar explosions.

Answer 6

Under intense heat and pressure you can actually fuse four hydrogen nuclei to create one helium atom.  A lot of energy is released during this process all across the electromagnetic spectrum.  After all the hydrogen is depleted in the core then the star will shrink.  When it shrinks it will heat up much hotter than before and left over hydrogen outside of the core will start to fuse.  Since it is hot enough outside the core to fuse hydrogen then it is much hotter in the core and so it starts fusing helium in to carbon and / or oxygen.  Depending on the size of the star it will simply die after that or start fusing other elements such as silica, magnesium, neon and then iron.  During supernovas, when a star finally explodes, then all the extremely heavy elements such as gold, lead and uranium and all the other elements denser than iron are formed.  All the metal on this earth was made in a star that died in a massive explosion.  I hope this helps.