Chemical elements by atomic number — the full ranked list
The complete ranking of chemical elements by atomic number, in order, with what the ranking counts and how firm the figures behind it are. Free reference, no sign-up — and the guessing game that plays the same list.
The periodic table in order, hydrogen first. The only list here that will never need updating — atomic number is a count of protons, not an estimate.
Ranked from published, countable figures.
100 entries, in order.
- Hydrogen
- Helium
- Lithium
- Beryllium
- Boron
- Carbon
- Nitrogen
- Oxygen
- Fluorine
- Neon
- Sodium
- Magnesium
- Aluminium
- Silicon
- Phosphorus
- Sulfur
- Chlorine
- Argon
- Potassium
- Calcium
- Scandium
- Titanium
- Vanadium
- Chromium
- Manganese
- Iron
- Cobalt
- Nickel
- Copper
- Zinc
- Gallium
- Germanium
- Arsenic
- Selenium
- Bromine
- Krypton
- Rubidium
- Strontium
- Yttrium
- Zirconium
- Niobium
- Molybdenum
- Technetium
- Ruthenium
- Rhodium
- Palladium
- Silver
- Cadmium
- Indium
- Tin
- Antimony
- Tellurium
- Iodine
- Xenon
- Caesium
- Barium
- Lanthanum
- Cerium
- Praseodymium
- Neodymium
- Promethium
- Samarium
- Europium
- Gadolinium
- Terbium
- Dysprosium
- Holmium
- Erbium
- Thulium
- Ytterbium
- Lutetium
- Hafnium
- Tantalum
- Tungsten
- Rhenium
- Osmium
- Iridium
- Platinum
- Gold
- Mercury
- Thallium
- Lead
- Bismuth
- Polonium
- Astatine
- Radon
- Francium
- Radium
- Actinium
- Thorium
- Protactinium
- Uranium
- Neptunium
- Plutonium
- Americium
- Curium
- Berkelium
- Californium
- Einsteinium
- Fermium
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