Bohr Diagrams, Valence Electrons, Lewis Dot Structures

Name __________________________ Period ___ Bohr diagrams, valence electrons, lewis dot structures (notes) Bohr diagrams Draw carbon (C)

Try the remaining atoms on your own H

Al

He

Ne

O

K

Electron subshells

1. ____________________ _____________________ are the outermost electrons of an atom 2. Those are the electrons that participate in ___________________ _______________. 3. _____________with a full outer shell are considered _____________ which means _________ __________________ 4. How many valence electrons does carbon have? ______ 5. A ______________ ______________or electron dot diagram is a representation of valence electrons only 6. It is made by using the elements _________________and dots showing the valence _____________________

Draw the Lewis dot structures for the following elements Hydrogen

Aluminum

Helium

Neon

Oxygen

Potassium

If the outer shell is full and that makes the atom inert, what would make the atom more reactive (more likely to participate in chemical reactions)? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ____

Which of the above atoms do you think will be the most reactive (you can list more than one). Why do you think that? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ____ Oxygen and Sulfur are both in group VI. How many valence electrons do they each have? _______ . Is there a connection between valence electrons and group number? What can you conclude about elements in the same group? _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ___ Sodium (Na) reacts violently when mixed with water. Why?

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