The electronic structure of sodium as a diagram Electronic structures and the periodic table Sodium is a chemical element of the periodic table with chemical symbol Na and atomic number 11 with an atomic weight of 22. each electron is shown as a dot or a cross.This electronic structure can also be shown as a diagram. This electronic structure can be written as 2,8,1 (each comma, or dot, separates one shell from the next). eight electrons occupy the second shell.Sodium atoms have 11 protons and so 11 electrons: For example, the atomic number of sodium is 11.
#Na element model how to#
In this article, I have discussed in detail how to easily write the complete electron configuration of sodium. Sodium is a classified alkali metal element. The electronic structure of an atom can be predicted from its atomic number. Electron Configuration for Sodium and Sodium ion (Na+) Sodium is the 11th element in the periodic table and its symbol is ‘Na’. The information shown is for elements with atomic numbers 1 to 20: Shell When this shell is full the electrons begin to occupy the next energy level.īelow is a table showing the maximum number of electrons an element can have for each of its energy level shells. Transfer of the lone 3s electron of a sodium atom to the half-filled 3p orbital of a chlorine atom generates a sodium cation (neon valence shell) and a chloride. The electrons in an atom occupy the lowest available energy level first. Different shells can hold different maximum numbers of electrons. Electrons in shellsĮlectrons in atoms occupy energy levels, also called electron shells, outside the nucleus. An electronic structure is the way in which electrons are arranged in an atom.
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