The element represented by 'He' on the periodic table is helium. Helium is a colorless, odorless, tasteless noble gas and is the second-lightest element in the universe after hydrogen. It is primarily produced through nuclear fusion in stars, including the sun, where hydrogen is converted into helium. Helium is widely used in various applications, from filling balloons to cooling superconducting magnets in MRI machines. Its non-reactive nature makes it valuable in scientific research and industry. Helium's unique properties, including its lower density compared to air, contribute to its popularity in applications requiring inert gas or buoyancy.