Question

arrange the following elements from first to last to undergo nuclear fusion in the core of a high - mass star. answer bank: helium, oxygen, hydrogen, carbon, silicon

Explanation:

In a high - mass star, nuclear fusion starts with hydrogen. As hydrogen is exhausted, helium fusion occurs, followed by carbon, oxygen, and finally silicon fusion before the star's end - stage.

Answer:

First: hydrogen
Second: helium
Third: carbon
Fourth: oxygen
Last: silicon