Lewis Diagrams Flashcards

1
Q

Who made the Lewis diagram

A

Gilbert Newton Lewis

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2
Q

what does the Lewis diagram do

A

it uses Lewis notation which is a way to represent molecules with atoms, using their valence electrons.

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3
Q

how does a lewis diagram work

A

We use the chemical symbol to represent the nucleus and core electrons, and we use dots or crosses to represent the valence electrons.

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4
Q

how do we draw a Lewis diagram

A

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.

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5
Q

what are the exact steps to draw a Lewis diagram

A

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.

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