Fill In the blank Chapter 13 notes

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_______ ________ is the joining of atoms to form new substances.
Chemical Bonding
An interaction that holds two atoms together is called a chemical bond. When chemical bonds form, electrons are______ , gained, or ____.
Shared, Lost
Most atoms form bond using only its _______ _________
Valance Electrons
The number of ______ in the outermost ______level of an atom determine whether an atom will form bonds.
Electrons, Energy
Atoms that have __electrons in their outermost energy level do not usually form_____. The outermost energy level is considered to be full if it contains __electrons.
8, Bonds, 8
Not all atoms need _ valence electrons to have a filled outermost energy level. Helium atoms need only _ valence electrons because the outermost level is the first energy level.
8, 2
An _____ ____is a bond that forms when electrons are transferred from one atom to another atom.
Ionic Bond
An atom is_______ because the number of _________in an atom equals the number of protons.
Neutral, Electrons
But when an atom gains or loses electrons, it becomes a charged particle called an _____.
Ion
The outer energy level of ________atoms is almost full. So, nonmetal atoms tend to ____ electrons and become negative ions.
Nonmetal, gain
An ionic bond will usually form between a _____ and a ________ .
Metal, Nonmetal
When _____ bonds form, the number of electrons lost by the ______ atoms equals the number gained by the ________ atoms.
Ionic, metal, nonmetal
When ions bond, they form a repeating three dimensional pattern called a _______ _______.
Crystal Lattice
Properties of ionic compounds include ___________, high _______ points, and high _______ points.
Brittleness, Boiling, Melting
A ________ ____ forms when atoms share one or more pairs of electrons.
Covalent Bond
Covalent bonds usually form between atoms of _________
Nonmetals
A ________ is the smallest particle into which a covalently bonded compound can be divided and still be the same compound.
Molecule
Molecules made up of two atoms of the same element are called ________ molecules.
Diatomic
A _______ ____ is a bond formed by the attraction between positively charged metal ions and the electrons in the metal.
Metallic Bond
Bonding in metals is a result of the metal atoms being so close to one another that their outermost energy levels _______ This overlapping allows valence electrons to ____ throughout the metal.
overlapping, move
_______ bonding allows metals to conduct electric current.
Metallic
_________ is the ability to be draw in to wires.
Ductility
___________ is the ability to be hammered into sheets.
Malleability