Mendeleev فارسی

Manganese (Mn) – Element 25 of the periodic table

Manganese (symbol Mn) is element number 25 of the periodic table and belongs to the “Transition metal” category. Its atomic mass is about 54.938, and its phase under standard conditions is Solid. This element sits in period 4 and group 7 of the periodic table, and its electrons are arranged in shells of 2, 8, 13, 2. The short electron configuration of Manganese is [Ar] 3d⁵ 4s². Known uses of Manganese include Steelmaking, Alkaline batteries and Glassmaking.

View in the interactive periodic tableAsk the AI assistant

Properties of Manganese

Atomic number
25
Chemical symbol
Mn
Atomic mass
54.938
Category
Transition metal
Period
4
Group
7
Phase
Solid
Protons
25
Electrons
25
Neutrons (approx.)
30
Electron shells
2, 8, 13, 2
Outer-shell electrons
2
Discovered
Johan Gottlieb Gahn (1774)

Electron configuration of Manganese

The electron configuration of Manganese (Mn), with 25 electrons, is shown below. The last shell (shell 4) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²
Short configuration
[Ar] 3d⁵ 4s²
Last shell
4s²

What is electron configuration and how is it written?

Electron shells of Manganese

Distribution of 25 electrons of Manganese across shells K to N:

  1. K2
  2. L8
  3. M13
  4. N2

What is a transition metal?

The transition metals are the d-block elements: usually good conductors of heat and electricity, with several oxidation states, and they form colourful compounds and important catalysts.

Uses of Manganese

Frequently asked questions about Manganese

What is the atomic number of Manganese?

The atomic number of Manganese (Mn) is 25; that is, every atom of it has 25 protons.

What is the electron configuration of Manganese?

The electron configuration of Manganese (Mn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²; in short form it is [Ar] 3d⁵ 4s², and its last shell is 4s².

What is the chemical symbol of Manganese?

The chemical symbol of Manganese is Mn.

Where is Manganese located in the periodic table?

Manganese is located in period 4 and group 7 and belongs to the “Transition metal” category.

What is the atomic mass of Manganese?

The atomic mass of Manganese is about 54.938 (atomic mass units).

What is the phase of Manganese under normal conditions?

The phase of Manganese under standard conditions is Solid.

What are the uses of Manganese?

Uses of Manganese include Steelmaking, Alkaline batteries and Glassmaking.

Who discovered Manganese?

Manganese was discovered by Johan Gottlieb Gahn in 1774.

Elements in the same category as Manganese (Transition metal)

Scandium (Sc)Titanium (Ti)Vanadium (V)Chromium (Cr)Iron (Fe)Cobalt (Co)Nickel (Ni)Copper (Cu)Zinc (Zn)Yttrium (Y)Zirconium (Zr)Niobium (Nb)Molybdenum (Mo)Technetium (Tc)Ruthenium (Ru)Rhodium (Rh)Palladium (Pd)Silver (Ag)Cadmium (Cd)Hafnium (Hf)

See all Transition metals

Manganese’s group 7 neighbours

Technetium (Tc)Rhenium (Re)Bohrium (Bh)

Group 7 of the periodic table