Iron has the electron configuration [Ar]3d64s2.
Arsenic
K
bromine
Ga
Calcium
Te
Se
iron is a metalyeah
Iron has the abbrieviated elcetron configuration of [Ar] 4s23d6.
The 3d sub-level has 5 orbitals, and therefore space for a total of 10 electrons. Excluding certain hyper-valent bonding scenarios, the first element with electrons to occupy the 3d sub-level is scandium (Sc).
Iodine's electron configuration is: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 Iodine's Nobel gas configuration is: [Kr] 4d10 5s2 5p5 Orbital notation is difficult to represent in this format, but would consist of one up and one down arrow on a single line for the 5s2 and for the 5p5 it would be 3 lines, the first two containing an up and down arrow and the last containing only one up arrow. Remember to place the arrows 1 1 1 before pairing (Hund's Rule) to keep your professor happy ;)
Iron has electron structure [Ar]4s23d6 and thus has 8 valence electrons in theory. For all practical purposes though, Iron shows a maximum valence of 6.
iron is a metalyeah
[Ar] 4s23d6
Iron has the abbrieviated elcetron configuration of [Ar] 4s23d6.
The standard model suggests an electron cofiguration for nickel (element number 28)as :[Ar] 4s2 3d8However, relativistic effects make the more stable configuration [Ar] 4s1 3d91s2,2s2,2p6,3s2,3p6,4s2,3d8
Iron has electron structure [Ar]4s23d6 and thus has 8 valence electrons in theory. For all practical purposes though, Iron shows a maximum valence of 6.
The 3d sub-level has 5 orbitals, and therefore space for a total of 10 electrons. Excluding certain hyper-valent bonding scenarios, the first element with electrons to occupy the 3d sub-level is scandium (Sc).
Iodine's electron configuration is: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 Iodine's Nobel gas configuration is: [Kr] 4d10 5s2 5p5 Orbital notation is difficult to represent in this format, but would consist of one up and one down arrow on a single line for the 5s2 and for the 5p5 it would be 3 lines, the first two containing an up and down arrow and the last containing only one up arrow. Remember to place the arrows 1 1 1 before pairing (Hund's Rule) to keep your professor happy ;)
Iron has electron structure [Ar]4s23d6 and thus has 8 valence electrons in theory. For all practical purposes though, Iron shows a maximum valence of 6.
[Ar] 4s23d6 Ar being argon the noble gas we're using to replace all the other orbitals we should have written before the 4th there.
Reduction is addition of electrons. Iron is [Ar]4s23d6 and can lose electrons (or be oxidized) very easily. Reduction or addition of electrons does not make it stable. The next inert gas is Kr with 36 electrons. It would thus have to gain 10 electrons (be reduced) to get to this structure. This is energetically very unfavorable. All metals as a general rule prefer to lose electrons than gain them.
The number of valence electrons in the transition metals is somewhat different than main group elements. As you go from left to right across the periodic table, the electrons added to the transition metals go into the d-orbitals. However, because the energy of the 4s orbital is lower than the 3d orbital (and the 5s is lower than the 4d, etc.), the 4s orbital fills first. Therefore the electron configuration of iron for instance is [Ar]4s23d6.Because the valence electrons are defined as the electrons in the outermost or highest energy shell, for iron, that would be the 4th shell. So the 6 electrons in the 3d orbital don't count. Only the 2 electrons in the 4s orbital count since they are in the 4th shell. Most transition metals thus have 2 valence electrons (although some, such as chromium, only have one because of exceptions to the filling rules -- the configuration of chromium is [Ar]4s13d5).However, despite this, when drawing Lewis dot structures or drawing molecular orbital diagrams for transition metals, which are the main reasons to count valence electrons, all of them count. In fact, while the main group elements follow the "octet rule" (for a complete valence shell of 8 electrons), the transition metals follow the "18 electron rule" since the 10 electrons in the d-orbitals are now included. When counting electrons for Lewis dot structures, they all go into the count for the structure and transition metals are most stable when they have 18 electrons in the structure in the same way that main group elements are most stable when they have 8.See the Related Questions to the left for more information on counting valence electrons. See the Web Links for an excellent periodic table with the electron configuration of each element.
The Lewis dot diagram for Iron is the letters FE with seven dots around it, with no more than 2 dots on each side. Iron is not a part of the halogen family. Good try! However, the electron configuration of Fe is [Ar]4s23d6. Unlike the representative elements, the lower level 3d electrons can act as valence electrons. The total number of "valence" electrons is equal to eight so Fe would have eight dots around it. Also, iron is NOT part of the halogen family which includes fluorine, chlorine, bromine, iodine, and astatine. It is classified rather as a transition metal.