What does He stand for?

"He" is the chemical symbol for Helium, an element on the periodic table with atomic number 2. Helium is a colorless, odorless, and inert noble gas, meaning it doesn't easily react with other elements. It is the second most abundant element in the universe, commonly found in stars, including the sun. Helium is widely used in applications like filling balloons, in cryogenics, and as a protective gas in welding due to its non-reactive nature.