What is valence electron and valence shell?
In chemistry, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. The presence of valence electrons can determine the element's chemical properties, such as its valence—whether it may bond with other elements and, if so, how readily and with how many. In this way, a given element's reactivity is highly dependent upon its electronic configuration. For the main group element, a valence electron can exist only in the outermost electron shell; for a transition metal, a valence electron can also be in an inner shell.
How to Calculate Number of Electrons Left after Bonding?
Number of Electrons Left after Bonding calculator uses Number of Electrons Left After Bonding = Number of Electrons in Valence Shell-Oxidation Number to calculate the Number of Electrons Left After Bonding, The Number of electrons left after bonding formula is defined as the sum between the number of electrons in the valence shell and the oxidation number. Number of Electrons Left After Bonding is denoted by NeAfter Bonding symbol.
How to calculate Number of Electrons Left after Bonding using this online calculator? To use this online calculator for Number of Electrons Left after Bonding, enter Number of Electrons in Valence Shell (NeValence Shell) & Oxidation Number (Oxidation number) and hit the calculate button. Here is how the Number of Electrons Left after Bonding calculation can be explained with given input values -> 5 = 7-2.