Recognised as Chemical element
Manganese
- Mn
- Z = 25
- transition metal
Manganese (Mn) is element 25, a transition metal in period 4 and group 7. Its standard atomic weight is 54.938 Da. Weights follow IUPAC standard atomic weights, 2021 revision.
Identity
SymbolMn
Standard atomic weight54.938atomic mass units (Da)
Mass in kilograms9.1226695 × 10^-26
Categorytransition metal
Group7
Period4
Blockd-block
Electrons in a neutral atom25
Neutrons in the most common isotope30≈
Quantities
Molar mass54.938 g/mol
Mass of one mole54.938 grams
Atoms in one gram1.0961704 × 10^22
Mass of one atom9.1226695 × 10^-23 g
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