Chapter 6: Chemical Bonds
Mixture of atoms of a metal with an element where the mixtures have metallic properties is called an _____
Alloy
______ type is determined by how atoms attain a _________________
Bond, stable electron configuration
Two shared electrons that make up a pair are called ________
Bonding pair
The electron sea theory accounts for all the following characteristics of metals except
Brittleness
Chapter Title
Chemical Bonds
Because of these inherit properties, atoms naturally link with other atoms to form ___________
Chemical bonds
Matching: CN-
Covalent
Matching: O2
Covalent
Matching: Share
Covalent
Bonds formed by sharing electrons are called ________
Covalent bonds
2 no metals
Covalent; molecule
The noble valence electrons in a metallic bond are said to be _______
Delocalized
Negative charge of the ________ acts as a "glue" to hold the positively charged metal ions together
Delocalized electrons
The measure of an atom's ability to attract electrons to itself when in a chemical bond is called?
Electronegativity
The luster or shine seen on most metals is thought to be cause by the movement of
Electrons
The attraction between opposite, electrical charges is called a/an _________ force
Electrostatic
The ratio of cations to anions needed to achieve this neutrally determines the chemical formula for the compound, called a _______
Formula unit
Explains how metal atoms bond together and why metals have such unique properties is called the electron sea theory or ________
Free electron theory
4+ valence electrons = ______=______
Gain, high electron affinities
Atoms ability to ____ or ____ electrons determines __________
Gain, lose, chemical reactivity
Matching: Na2S
Ionic
Matching: attraction between opposite charged ions
Ionic
Matching: transfer
Ionic
What type of bond would you elect in a compound of oxygen and sodium?
Ionic bond (metal and nonmetal)
Difference of ______ elements electronegativties (delta EN) is typically _________
Ionic, large
1 metal, 1 nonmetal
Ionic; formula unit
_________ are two dimensional diagrams that show the bonds between different atoms
Lewis Structure
-4 valence electrons=______=______
Lose, low electron affinities
Full valence shell (mostly 8)
Maximize stability; octet rule
Matching: B3Al
Metallic
Matching: Electron Sea Theory
Metallic
2 metals
Metallic; alloy
These atoms are covalently bonded into a CONTINUOUS three-dimensional network ex: diamond (hardest natural)
Network covalent substances
An atom becomes more stable by bonding with another atom if the resulting electron configuration is more like what group of elements?
Noble gases
A dash in a Lewis dot structure represents
Pair of electrons
What does *little symbol with plus or minus* mean?
Partial charge
_________is the tendency of an object to form two localized regions of opposite character
Polarity
Although they are made up of two or more atoms _______ ions often act as single charged particles in chemical reactions and solutions
Polyatomic
In certain cases, a covalently bonded anion forms called a _________
Polyatomic ion
Elements rearrange the ______ number of _______ possible in ______ process
Smallest, electrons, bonding
Salt
Sodium chloride
The central atom is a Lewis dot structure is usually the atom
With the most unpaired electrons
Which of the following does NOT exist as s diatomic molecule?
argon
An orderly arrangement of ions in a 3 dimensional pattern within a compound is called
crystal lattice
Which of the following is NOTHING a normal property of an ionic compound?
good heat conductive when dissolved in water
