"(Lewis Electron-Dot Symbols) if will translate directly can." the symbol representing the electron with the point. "Before starting the study model of each model. We must learn how to show วาเลนซ์อิเล็กตรอน of atoms are studied.(under the name of the American chemist G.N.Lewis), "the chemical symbol for nucleus and electrons. In and points instead of valence electrons surrounding" number among A (1A - 8A) tell the วาเลนซ์อิเล็กตรอน element that points 1 points instead of 1 วาเลนซ์อิเล็กตรอน.Boeing (top, bottom, left, right)
.If the electrons left to draw points increase by spot (a pair of). Add to the number of points equal to the number of วาเลนซ์อิเล็กตรอน.
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