This document summarizes different types of chemical bonds:
Ionic bonds form through electrostatic attraction between oppositely charged ions. Ionic compounds conduct electricity and have high boiling points. Covalent bonds share pairs of electrons between atoms. Metallic bonds constitute electrostatic forces between delocalized electrons in a "sea" of positive metal ions, giving metals high melting points. Alloys are mixtures of metals with constituents measured by mass that can be substitutional or interstitial in atomic arrangement.
2. Intro
A chemical bond is a is an
attraction between atoms that
allow the formation of chemical
that contains 2 or more atoms
Attraction between atoms and
for molecules cell lead to
chemical bonding
Ionic bond is a type of chemical
bond formed though an
3. Ionic bonding
Ionic bond is a type of chemical
bond formed though an electrostatic
attraction between two oppositely
charged ions
Three physical properties = Conduct
electricity, solubility, boiling point
4. Ionic bonding cont..
Lattice energy on energy that is
the strength of an ionic
compound is the energy given
off when the gas phases of the
two element bond together to
become solid
5. Covalent bonds
When atoms bond covalently they count a
share in the pair of electrons in the
covalent bond as two electrons in their
outer shell.
Single covalent bond are when one pair of
electrons are shared
- double covalent bonds are when 2 pairs of
electrons are shared.
- triple covalent bond are when 3 pairs of
electrons are shared.
6. Metallic bond
Metallic bonding constitutes the
electrostatic attractive forces between the
delocalized electrons, called conduction
electrons, gathered in an "electron
sea", and the positively charged metal
ions.
because of very strong bond between all of
the nuclei and electrons of the alloy, lots
of energy is needed to break the
bonds, therefore having a high melting
point
7. Alloys
An alloy is a mixture or metallic
solid solution composed of two or
more elements
Alloy constituents are usually
measured by mass. Alloys are
usually classified as substitutional
or interstitial alloys, depending on
the atomic arrangement that forms
the alloy.