Title: Chemical Bonds
1Chemical Bonds
2Ionic Bonds
- An Ionic Bond is a chemical bond resulting from
the TRANSFER of electrons from one bonding atom
to another
- When is an ionic bond formed?
- An ionic bond is formed when a cation (positive
ion) transfers electrons to an anion (negative
ion).
3What are some characteristics of an ionic bond?
- Crystalline at room temperatures
- Have higher melting points and boiling points
compared to covalent compounds - Conduct electrical current in molten or solution
state but not in the solid state - Polar bonds
4Covalent Bonds
- What is an Covalent Bond?
- A covalent bond is a chemical bond resulting
from SHARING of electrons between 2 bonding
atoms.
- What forms a covalent bond?
- A covalent bond is formed between two
nonmetals.
5What are some characteristics of a covalent bond?
- Covalent bonds have definite and predicable
shapes. - Very strong
- Low melting and boiling points
6Covalent Bonds can have multiple bonds, so you
should be familiar with the following
Single Covalent Bond- chemical bond resulting
from sharing of an electron pair between two
atoms.
Double Covalent Bond- chemical bond resulting
from sharing of two electron pairs between two
atoms.
Triple Covalent Bond-chemical bond resulting from
sharing of three electron pairs between two
atoms.
7First, we are going to look at Polar Covalent
c
What is polar covalent?
-Polar covalent is a description of a bond that
has an uneven distribution of charge due to an
unequal sharing of bonding electrons.
The boy is not equally sharing with anyone else
but rather taking all the food for himself.
8Next, we are going to look at Non-Polar Covalent
What is non-polar covalent?
-Non polar covalent is a covalent bond that has
an even distribution of charge due to an equal
sharing of bonding electrons.
This couple is non- polar because they are
sharing the drink equally between them.
9Just as a summary to what each bond looks like