Fusion occursoccurs when protons of hydrogen atoms violently collide in the sun's ko and fuse to create a helium atom . This process known as a PP ( proton - proton ) chain reaction , emits an enormous amount of energy . In its core , the sun fuses about 620 million metric tons of hydrogen every second .
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Explanation:
Fusion occursoccurs when protons of hydrogen atoms violently collide in the sun's ko and fuse to create a helium atom . This process known as a PP ( proton - proton ) chain reaction , emits an enormous amount of energy . In its core , the sun fuses about 620 million metric tons of hydrogen every second .