Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Calcium
Chromium
Manganese
Iron
Cadmium
Nickel
Copper
Zinc
Arsenic
Bromine
Krypton
Rubidium
Strontium
Silver
Tin
Cobalt
Iodine
Xenon
Cesium
Barium
Gold
Mercury
Lead
Bismuth
Radon
Uranium