PART I
T. Trimpe 2008
http://sciencespot.net/



Write your homework – leave it out to be
stamped!
Update your Table of Contents for today
Complete your Element Review Square & KEEP IT
SOMEWHERE SAFE, YOU WILL USE IT AGAIN AT
THE END OF CLASS & IT WILL GET TURNED IN!
Date
Session
#
10/12
10/13
7
Activity
Page
#
Bonding Basics Note Guide
8
Ion “Cheater” Chart
9
Homework: Chemical Bonding Worksheet
10
 Bonding
is an example of a
chemical change
 Bonding occurs when 2 or more
atoms are chemically joined
 When 2 or more atoms bond that
is called a molecule
 A molecule that contains 2 or
more different elements is called
a compound
 VALENCE
ELECTRONS =
 the electrons on the outer
(valence) shell of an atom
1
7
2
3
4 5 6
8


The first shell holds
2
electrons.
8
After the 1st shell, each shell needs
electrons to be full and STABLE/HAPPY!

Atoms give away or steal valence electrons
in order to happy and stable with a full
valence shell!
◦ Atoms with less than 4 valence electrons
tend to lose electrons – “Givers”
◦ Atoms with more than 4 valence electrons
tend to gain electrons – “Stealers”

What about an element like carbon?
◦ Carbon has 4 valence electrons, so what
will it do? BOTH!
◦ The fact that carbon
has 4 valence electrons
allows it to bond with
many elements!


Atoms give away or steal valence
electrons in order to be STABLE/HAPPY
with a full valence shell!
REMEMBER: When an atom gains or
loses electrons it becomes a charged
Ion (cation or anion)
____________________
Remember…
ION = an atom with a charge because it
loses or gains one or more electrons.
Positive ion=cation Negative ion=anion
loses electrons
gains electrons
(now has more positive particles
than negative)
(now has more negative particles
than positive)

Here are 2 elements that have a few extra
electrons. What do they want to do?

Here are 2 elements that are missing a few
electrons. What do they want to do?


We have Sodium (Na) who has an extra
electron, and Fluorine (F) who is looking for
an electron SO…
They end up bonding so they can both be
happy!
 Fill
in the electron table
using your periodic
table…if you got that move
on to the back!
Element
Chlorine
Potassium
Magnesium
Fluorine
Aluminum
Carbon
Element
Symbol
Atomic
Number
Total # of
Electrons
# of
Valence
Electrons
# of
Electrons
Gained or
Lost
Overall
Charge
(+/-)
Atomic # =
Atomic # =
Atomic Mass =
Atomic Mass =
# of Protons =
# of Protons =
# of Neutrons =
# of Neutrons =
# of Electrons =
# of Electrons =
Cation or Anion =
Ion Symbol =
Group/Family
Name
Alkali
Metals
Group/Family
Number
1
# of Valence
Electrons
1
# of empty
spaces for
electrons
7
Giver or Stealer
of electrons
Giver
Type of ion
formed
Cation
Charge of ion
formed
+1
Group # they
bond with
7
Alkaline
Metals
Boron
Family
Carbon
Family
Nitrogen
Family
Oxygen
Family
Halogens
Noble
Gases
PART 2
T. Trimpe 2008
http://sciencespot.net/
 Ionic
Bonds
 Covalent
Bonds

TAKE
Atoms will ____________
one or more electrons to
form a bond.

COMPLETE
Each atom is left with a ________________
valence
shell.

METAL
An ionic bond forms between a ___________ion
with a positive charge and a ________________
ion
NONMETAL
with a negative charge.

SHARE one or more electrons with each
Atoms ___________
other to form the bond.

COMPLETE
Each atom is left with a ________________
valence
shell.

NONMETALS
A covalent bond forms between two ________________.

https://www.youtube.com/watch?v=NgD9yH
SJ29I
Bromine
Iodine
Calcium
Chlorine

METAL ATOMS
A metallic bond forms between ________________.

Valence electrons move freely in an
__________________
“ELECTRON SEA” between metal atoms to form a
bond between all the metal atoms in the area.

This gives metals strength, stability, and properties like
conductivity & malleability.

ALLOYS
Metallic bonds create solutions called __________,
which
are a combination of elements that make other metallic
materials like brass, bronze, pewter, steel, and even
white gold!
http://cd1.edb.hkedcity.net/cd/science/che
mistry/resource/animations/metallic_bond/
metallic.html
 ON
THE BACK OF YOUR ELEMENT
SQUARE WARM-UP NUMBER 1-10
 Make sure your name is on it
somewhere!
 1. Which of the following particles are
involved in bonding?
A.
B.
C.
D.
Protons
Neutrons
Electrons
Valence Electrons only
 2. How many valence electrons does
Silicon (Si) have?
 3.
TRUE OR FALSE:
According to the
Octet Rule, atoms with more than 4
valence electrons are “stealers.”
 4. Which type of bond is between a metal
and a nonmetal?
A.
Covalent
B.
Ionic
C.
Metallic
 5. ____________ bonds involve taking
electrons to be stable/“happy” or
complete.
A.
Ionic
B.
Covalent
C.
Metallic
 6.
A _______________ bond is between
two or more nonmetals and involves
sharing electrons.
A.
Ionic
B.
Covalent
C.
Metallic
 7. Ionic or Covalent?
 8. Ionic or Covalent?
 9. Which type of bonding involves a “sea
of electrons,” that flow freely from one
atom to another?
A.
Ionic
B.
Covalent
C.
Metallic
 10. Metallic bonding is useful to form
other metallic materials called…
A.
Metalloids
B.
Alloys
C.
Fools Metals
Bonding Raps


http://www.youtube.com/watch?v=Xaoy94m
x2EU
https://www.youtube.com/watch?v=wWUYHH
o-zB0