Manganese
The transition element with 25 electrons is manganese (Mn), which has an atomic number of 25. It belongs to the d-block of the periodic table and is known for its diverse oxidation states and important role in biological systems as a cofactor.
ZINC, of course
Assuming we're dealing with a neutral atom, you're thinking of manganese (Mn). It has 25 protons and is a transition metal in period 4, group 7B on the periodic table.
A transition element of f-block Thorium has 90 electrons in natural state, it is a Radioactive element.
Manganese
The transition metal with 25 electrons that starts with an O is the element named "osmium" (Os). It belongs to the platinum group of metals and has a dense, bluish-white appearance. Osmium is commonly used as an alloying agent in the production of hard and durable materials.
The periodic table shows the atomic number of all elements. It shows that Mercury has 80 electrons and protons and if your really good with the elements you will be able to tell that it is a transition element.
the valence electrons cause the chemical reations. the valence electrons decide that element attract to which element.
This element is manganese (Mn).
The element with this orbital notation is nickel (Ni), a transition metal.
Manganese, the 25th element, has 25 protons.
Manganese has an atomic number of 25. thus it has, (in its elemental form) 25 protons and 25 electrons.