![]() Also, both fluorine and oxygen atoms that were lacking one and two electrons, respectively, have become stable by attaining octet. Xenon, being a noble gas, already had eight valence electrons. Looking at the Lewis structure of XeO2F2, it can be deciphered that all the atoms have attained their octet. The bond between two atoms is represented through a line. Here, electrons are represented with dots and a nucleus with the atomic symbol of that atom. It illustrates the arrangement of electrons in an atom. The Lewis structure of an atom is a simplified representation of its atomic structure with its nucleus and valence electrons. Lewis and lays the foundation of all the other concepts related to an atom viz. This concept was put forth by Walther Kossel and Gilbert N. Usually, every atom tries to obtain the electronic configuration of its nearest noble gas to become stable.Īs all the noble gases, except helium, have 8 electrons in the outermost shell, the atoms of other elements also try to obtain eight electrons in their valence shell. However, the number and type of bond formed by an atom also depend upon these electrons present in the outermost shell. Octet RuleĪs stated earlier, the atoms form chemical bonds using their valence electrons. ![]() the outermost shell houses the valence electrons that also participate in chemical bonding. Therefore, in an atom, the electrons housed farthest from the nucleus have the highest energy, and are known as the valence electrons. The amount of energy of the electron increases as the electron moves away from the nucleus. Each electron carries a negative charge and has specific energy associated with it. The electrons in an atom revolve around its center, also known as the nucleus.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |