An easy definition of valence electrons would be a single outer shell electron in the outer shell of an atom that is responsible for the chemical properties of the atom. In other words, a valence electron is an electron of an atom, located in the outermost shell of the atom, that can be transferred to or shared with another atom.
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Frequently Asked Questions
1. How many electrons does iron have?
Iron contains eight electrons in its valence shell. Because iron is a transition metal, electrons in its d subshells can be used as valence electrons. Valence electrons are electrons that exist outside of a noble-gas core in a transition metal. Iron has the electrical configuration 1s22s22p63s23p64s23d6.
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