Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in combination with iron, and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.
Three reasons Manganese stands out
1
Used in steelmaking and batteries.
2
Vast potato-sized nodules rich in this element litter the floor of the deep ocean.
3
Enzymes containing this element protect cells from the oxidative damage that causes ageing.
An essential trace with many oxidation states
Manganese helps enzymes work and strengthens many steels, especially those expected to absorb impact. Its compounds can be nearly colorless, purple, brown, or black as the oxidation state changes. Deep-ocean nodules contain enormous manganese resources, though mining them raises difficult ecological questions.
Recognizing Manganese in Elementle
If Manganese is the mystery element, guesses below atomic number 25 point up and guesses above it point down. Its symbol is Mn: a green letter matches the same position in that symbol, while a yellow letter belongs in another position.
The family clue turns green for transition metal guesses. Compare Chromium (Cr), number 24 and Iron (Fe), number 26: they share the family clue, but their atomic numbers and symbols help you tell them apart.
Values are reference data, not a specification for every temperature, pressure, or allotrope. Unknown properties are left unavailable. Superheavy-element predictions remain uncertain.
The introduction and original editorial story are adapted from Wikipedia contributors via Periodic-Table-JSON. Element descriptions and their adaptations are available under CC BY-SA 3.0. Numerical attributes use the PubChem periodic-table dataset, retrieved September 22, 2026.