One of the many sons of Zeus this hero's accomplentments inclued killing the snake hair Medusa and turning giant Atlas to stone?

The hero you are referring to is Perseus, one of the sons of Zeus. He is best known for his quest to slay Medusa, the Gorgon with snake hair, which he accomplished with the help of gifts from the gods. After defeating Medusa, Perseus also used her head to turn the giant Atlas to stone, thereby creating the mountain range that bears his name.