Hydrogen is an element in the game.
"Huh? It sounds like Hydrogen has no idea what we’re talking about but she’s actually not so silly as she may seem. You can find her in our sun and in all the stars! Next time you look to the sky, think of this little blue blob."
How to change Hydrogen
Oscilloscope: Turns into Lithium at >2/3 the way/Seems to enjoy the Oscilloscope in Toca lab Elements 2
Centrifuge: Seems to enjoy the centrifuge
Bunsen Burner: Seems to enjoy the Bunsen burner
Test Tubes: Splits into minis
Freezer: Seems To Enjoy The Freezer
Info
Type: Liquid
Appearance: A sky blue element with circular pink cheeks and white lips.
Number: 1
Voice sfx: "Huh?"
Friends: Oxygen
Enemies: Uranium