Stars are ___________ and ___________ because of the _____________ taking place at their centers. These collisions alter their atomic structure causing the release of an enormous amount of _____________. _____________ is the reaction that fuels the stars. The _____________ of different atoms combine to form a larger nuclei of different _____________. The nuclear fusion happening in the cores of the stars converts _____________ into _____________. This process of producing a new element through nuclear reactions is called _____________. The elements that
Stars are ___________ and ___________ because of the _____________ taking place at their centers. These collisions alter their atomic structure causing the release of an enormous amount of _____________. _____________ is the reaction that fuels the stars. The _____________ of different atoms combine to form a larger nuclei of different _____________. The nuclear fusion happening in the cores of the stars converts _____________ into _____________. This process of producing a new element through nuclear reactions is called _____________. The elements that can be produced depend on the _____________ of the star.
The _____________ star can only convert hydrogen into helium. The medium stars like the sun can convert helium into _____________ and carbon once the hydrogen becomes depleted. The massive stars which are five times greater than the sun can convert helium atoms into _____________ and oxygen once the hydrogen becomes depleted. This is followed by the fusion of carbon and oxygen into neon, sodium, magnesium, sulphur, and silicon. Later reactions transform these elements into calcium, iron, nickel, copper, and others. When stars become old supernova, the _____________ elements are created and form the basis for _____________.
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