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Some help please :)
At which stage in the life cycle of a star is helium combined to form elements lithium through iron? Explain.

Respuesta :

damiandelong1

Answer:

Explanation:

During the formation of the universe some 14 billion years ago in the so-called ‘Big Bang’, only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium. As the cloud of cosmic dust and gases from the Big Bang cooled, stars formed, and these then grouped together to form galaxies.

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