Bonding Basics
Ionic Bonding
Covalent Bonding
VSEPR Theory
Bond Strength
100
What type of bonding is shown in the diagram below?
Ionic Bonding
100
Ionic bonds are formed by the difference in the _____ between two particles.
charge
100
The sharing of one or more pair of electrons forms a ____ bond.
covalent
100
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
100
The measure of attraction between two atoms is called __________.
Bond Strength
200
A force of attraction between two atoms that holds the atoms together.
Chemical bond
200
Use electron dot structures to predict the compound that would form between calcium and nitrogen.
Ca3N2
200
In terms of electrons, how do single, double, and triple bonds differ?
Single bonds share two electrons,
double bonds share 4 electrons, and
triple bonds share 6 electrons.
200
What does VSEPR theory predict?
A molecule's 3D shape.
200
Ionic bond strength is determined by ...
1) Comparing charges (larger charge = stronger)
2) Comparing ion sizes (smaller ion = stronger)
300
How many valence electrons does iodine have?
How many valence electrons does iodine want to be "happy?"
7 valence electrons
8 valence electrons
300
The chemical formula for an ionic compound is arranged in the smallest whole-number ratio is known as the ____________.
Empirical Formula
300
The chemical formula for a covalently bonded group of atoms is called a ____________ formula.
molecular
300
What are the bond angles in CH4?
109 (109.5 degrees)
300
Covalent bond strength is determined by ...
The number of shared electrons.
2 = weakest
4 = medium
6 = strongest
400
What type of elements are atoms A and B below?
nonmetals
400
An ionic compound is said to be __________ when it is dissolved in water.
aqueous
400
What is the difference between the bonds in N2, O2, and F2?
F2 contains a single bond, O2 contains a double bond, and N2 contains a triple bond.
400
What is the difference in domains between pyramid and trigonal pyramidal shapes?
pyramid = 3 BDs and 4 EDs
trigonal pyramidal = 3 BDs and 3 Eds
400
Which compound has a stronger bond and why?
CaCl2 or K3P
K3P ==> P has the largest charge (-3)
500
Is the following Lewis Structure correct or incorrect? If it is incorrect, identify why it is incorrect.
Incorrect; too many electrons on nitrogen.
500
True or False. If false, correct the underlined word.
Ionic bonds are very strong, liquids at room temperature, have high melting and boiling points, are made of a metal and a nonmetal, and conduct electricity in the liquid and aqueous states.
False, solids at room temperature.
500
Write the structure for CNF?
500
What are the bond angles in trigonal bipyramidal?
120 degrees and 90 degrees
500
Which compound has the stronger bond?
F-F in F2 vs. Al-S in Al2S3
F2 => Covalent bonds are stronger than ionic bonds