Hydrogen Blue Icon (PNG, vector)

Hydrogen and other 60,400 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px.
The icon is a rounded square, within which is inscribed a letter H about a third as wide as the square. The icon represents atomic hydrogen, the most abundant and basic atomic element in the universe, itself comprised of one proton and one orbital electron.