The electronic formula has the ending 3d54s2 to determine the ordinal number and to depict the electrons in orbitals.
| February 9, 2021 | education
From the external energy level, we can say that this element is manganese. In the periodic table of chemical elements D.I. Mendeleev, it is at number 25 and has the following electronic formula:
Mn25: 1s2 2s2 2p6 3s2 3p6 4s2 3d5.
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