25
Mn
Transition metal

Manganese

Atomic number 25 · Period 4 · Block D

Mn · Manganese
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Understanding the element

Manganese (Mn) is chemical element 25. It belongs to the transition metals, and its reference state at room temperature is a solid. Those basic facts are a useful starting point for its chemistry and applications.

Where do we encounter it?

In practice, it turns up most often in metallurgy and steel, batteries and biology.

metallurgy and steelbatteriesbiology
Standard atomic weight54.938043(2)

What its position in the table tells us

Manganese sits in period 4, group 7 and the D block. That location is useful because neighbouring elements often share trends in valence electrons, oxidation states and bonding behaviour.

Worth remembering
Manganese has a characteristic place in the periodic table that helps explain both its chemistry and its practical uses

Scientific sources

Element identity
Atomic number25
Group7
Period4
BlockD
CategoryTransition metal
PhaseSolid