Qual è la configurazione elettronica dello ione ferro iii?
Risposta:
The configurazione elettronica for the iron(III) ion is:
#"1s"^2"s"^2"2p"^6"3s"^2"3p"^6"3d"^5"#
Spiegazione:
The element iron, Fe, has the numero atomico 26, which is the number of protons in its atomic nuclei. A neutral iron atom has 26 protons and 26 electrons. In order to form a #3^+# ion, it must lose three electrons.
The ground state electron configuration for a neutral atom of iron is:
#"1s"^2"s"^2"2p"^6"3s"^2"3p"^6"3d"^6"4s"^2"#
The electron configuration for the iron(III) ion is:
#"1s"^2"s"^2"2p"^6"3s"^2"3p"^6"3d"^5"#
The Fe atom loses two #"4s"# elettroni e uno #"3d"# elettrone.