Characteristic of element 25 mangan with electronic formula.

Chemical element – manganese (Mn)

Is in the fourth period (large), in the seventh group (side subgroup)

Serial number – 25

The relative atomic mass is 55

Atom structure:

The number of electrons is 25, the number of protons is 25, in order to calculate the number of neutrons, it is necessary to subtract the ordinal number from the relative atomic mass, we get: 55 – 25 = 30

+ 25Mn) 2) 8) 13) 2 1s2 2s2 2p6 3s2 3p6 3d5 4s2

At the last energy level there are 2 electrons, the level is not complete.

Manganese valency is variable, the highest valency is VII

Superior oxide formula: Mn2O7, the character of the oxide is acidic.

Acid formula: HMnO4

Has no volatile hydrogen compound.