Lewis Diagrams Flashcards
Who made the Lewis diagram
Gilbert Newton Lewis
what does the Lewis diagram do
it uses Lewis notation which is a way to represent molecules with atoms, using their valence electrons.
how does a lewis diagram work
We use the chemical symbol to represent the nucleus and core electrons, and we use dots or crosses to represent the valence electrons.
how do we draw a Lewis diagram
When drawing Lewis diagrams of individual atoms, imagine that there is a box around the element symbol. First, draw one electron on each side (top, bottom, left, and right) of the chemical symbol and then, add a second electron to each side. There can never be more than two dots on each side.
what are the exact steps to draw a Lewis diagram
Step 1: Write down the symbol for the element (remember that the first letter is a capital and the second letter, if there is one, is lowercase).
Step 2: Find the number of valence electrons by looking at the periodic table.
Step 3: Represent each electron with a dot or cross. Place one dot or cross on each of the four sides of the element symbol.
Step 4: Add the rest of the dots or crosses to make pairs around the atom, until you have used all the valence electrons.
