Types of Bonds
What is a Chemical Bond?
Elements on the periodic Table come in three different classifications. What are the three characteristics of elements on the periodic table?
In an Ionic Bond, what happens to the electron between two atoms?
The electron is transferred from one atom to another.
In a Covalent Bond, what happens to the electron between two atoms?
The electron is physically shared between two atoms.
In a Metallic Bond, what happens to the electrons between two or more atoms?
The Electrons form a "sea of electrons".
What are the three major types of Bonds we have covered so far?
Ionic, Covalent, and Metallic.
What elements are known to be Ductile, Malleable, and good conductors of electricity and heat?
Metals
What is the most common Ionic Compound we talked about in class? (I used it in almost all of my examples.)
Table salt- NaCl
Covalent Bonds only occur between what type of atoms?
Non-Metals
Metallic Bonds only occur between what type of atoms?
Metals
What type of Bond would 2 carbon atoms form?
Covalent Bond. Carbon is a non metal.
What type of element exists in group 16, period 6 of the periodic table?
metalloid- polonium
In an ionic compound, one element loses an electron to become what?
Cation (+)
When sharing electrons, how many electrons does each element (expect for hydrogen) what to have in its valence orbital?
8 electrons. We call this the Octet Rule.
In Metallic Bonds, what is the name of the structure that metal cations form with the sea of electrons?
Lattice Structure
What is the most flexible type of Bond that exists?
Metallic Bonds.
What is a Lewis Dot structure?
a simplified representation of the valence shell electrons in an element. It is used to show how the electrons are arranged around individual atoms in a molecule.
When naming Ionic Bonds, the Metal's name stays the same. What happens to the name of the Non metal?
The ending is dropped and changed to -ide.
example: Sodium Chlorine
drop:-ine
add:-ide
Sodium Chloride
In Covalent bonds, electrons that are not involved in bonding are called what?
Lone pairs
Using Aluminum as an example, how many electrons does it lose to the electron sea?
Hint: How many electrons are located in its valence orbital/shell?
Aluminum loses 3 electrons to become Al 3+
What types of bonds hold trees together?
Strong Covalent Bonds.
How many valence electrons does Carbon have?
4
What is the name of this Ionic Compound?
MgO
what are the charges/ number of atoms of each element?
Magnesium Oxide
2+ 2-
how many lone pairs are found in the covalent compound H20?
oxygen has 2 lone pairs that are not involved with bonding.
Because the electrons are freely floating throughout the metal cations.