The number of electrons in the first energy shell of an atom.
2
The type of bond created when 2 atoms share their electrons.
Covalent

What kind of compound does this Lewis structure show?
Ionic Compound
A model that shows how atoms bond.
Lewis Structure
Unequal distribution of electric charge in a molecule is called.
Polarity
How many electrons can an energy shell hold? (Not including the first energy shell.)
8
In an ionic bond, the _________ electrical charges of two atoms attracts them to one another.
Opposite
Ionic substances form _________ rather than molecules.
Crystals
When atoms share 2 pairs of electrons it creates a ______ _____ bond.
Double Covalent
A shorthand way of identifying a chemical compound.
Chemical Formula
Atoms with a tight hold on their valence electrons have a high _______________.
Electronegativity
An electrostatic attraction that forms between atoms when they share or transfer valence electrons
Chemical Bond
Molecules made of two atoms, whether of the same element or not.
Diatomic Molecules
These bonds form when atoms share 3 electrons to complete their octects.
Triple Covalent Bond

This image is an example of a ______________ bond.
Polar
Atoms with low electronegativity _____ _____ electrons easily.
Give Up
These bonds are created through a “sea” of shared electrons.
Metallic Bond
Molecules that contain different kinds of atoms.
Polyatomic

What type of bond does this Lewis structure represent?
Covalent
A compound made from only two elements.
Binary Compound
What rule states that atoms are most chemically stable when they have 8 valence electrons.
The Octet Rule
A bond formed between two ions.
Ionic Bond
The ___________ ___________ is the nickname given to the 7 diatomic elements.
Hydrogen 7
Carbon dioxide is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. Use the Lewis Structure to write out the atomic symbols and dashes that represent the bond. (This is not the one with dots.)

Write the chemical formula for Ammonia. Ammonia forms when 1 Nitrogen atom forms a single covalent bond with 3 Hydrogen atoms.
NH3