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In the ground-state electron configuration of fe3+, how many unpaired electrons are present? Hello freinds welcome to webdooniya in this article we learn about In the ground-state electron configuration of fe3+, how many unpaired electrons are present? So if you want to know about this then read this article carefully. In the ground-state electron configuration of fe3+, how many unpaired electrons are present? As atomic number Iron has 26, so its electronic configuration will be 1s2 2s2 2p6 3s2 3p6 3d6 4s2. Its electronic configuration will be is2 2s2 2p6 3s2 3p6 3d6 3DS 4s after losing 3 electrons. As its configuration is decided by the outer s and d orbitals, its outer shell has 5 electrons. But we know that d shell can accommodate a maximum of 10 electrons. In addition, it has 5 unexpected electrons. How many unpaired electrons are present in fe3+? The atomic number of Fe is 26. That is, it has 26 electrons. Fe-1s2 2s2 2p6 3s2 3p6 3d6 4s2 When we remove an electron, Fe + = 1s2 2s2 2p6 3s2 3p6 3d6 4s1 When we remove the next electron, Fe2 + = 1s2 2s2 2p6 3s2 3p6 3d6 4s0 When we remove the next electron, Fe3 + = 1s2 2s2 2p6 3s2 3p6 3d5