When a star explodes as supernova, the elements heavier than hydrogen spread throughout the universe.
Explanation:
The elements that are heavier than hydrogen spread in the universe that is mainly caused, when a star breaks as a supernova. Iron, lead, mercury, copper, gold, and iodine are the heavy elements which are formed and these often exist in a human life.
When these heavy elements cause a star to be overweight, it turns into a supernova and it may blast off, resulting in the release of the heavier elements. Some heavy atoms are created by nuclear fusions that occurs during supernova explosion.
