In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of hydrogen nuclei to form helium but larger stars can produce elements as heavy as iron .
The process of joining two nuclei to create energy is known as nuclear fusion. It starts when a star achieves a temperature of approximately 10,000,000 Kelvin. This temperature results from the gravitational contraction of a forming star.
which heats and increases the pressure of its gas hydrogen fusion, which happens in medium stars and involves the nuclear fusion of four protons to make helium-4, is the primary process that produces energy in the cores of main-sequence stars.
complete question:
In medium-sized stars such as the Sun, nuclear
fusion almost always means the fusing of_______
(helium, hydrogen, nitrogen) nuclei to_______ from
(hydrogen, lithium, helium) , but
form__________
larger stars can produce elements as heavy______as
(copper, silver, iron).
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