Period 1 Element

Element in first row of periodic table

or…
Earth
Periodic Table
Big Bang
Uranium
Quantum Mechanics
Gold
Universe
Water
Rare-Earth Element
or…
Star
Hydrogen
Plutonium
Antimony
Mercury (Element)
Aluminium
Plasma (Physics)
Copper
Iron
or…
Lead
Schrödinger Equation
Tungsten
Ammonia
Oxygen
Magnesium
Potassium
Sodium
Nitrogen
Explore Period 1 Element