Transcript Noble Gasses

Chemistry
Review
Use the information provided to answer the questions.
2
He
Helium
4.003
5
B
Boron
10.81
11
Na
Sodium
22.990
17
Cl
Chlorine
35.453
1. What is the atomic number for Chlorine?
2. What is the atomic mass for Boron?
3. How many protons are in an atom of Na?
4. How many neutrons are in an atom of He?
5. How many electrons are in an atom of Cl?
6. How many protons and neutrons would be in an atom of Chlorine?
7. How many neutrons are in an atom of Na?
8. How many protons and neutrons are in an atom of Helium?
The answers are …
2
He
Helium
4.003
5
B
Boron
10.81
11
Na
Sodium
22.990
1. What is the atomic number for Chlorine?
2. What is the atomic mass for Boron?
17
Cl
Chlorine
35.453
17
10.81 or 11
3. How many protons are in an atom of Na?
11
4. How many neutrons are in an atom of He?
2
5. How many electrons are in an atom of Cl?
17
6. How many protons and neutrons would be in an atom of Chlorine?
7. How many neutrons are in an atom of Na?
12
8. How many protons and neutrons are in an atom of Helium?
4.003
or 4
35.453
or 35
Fill in the chart using the information provided.
Element
Atomic #
Atomic
Mass
Protons
Neutrons
Electrons
Li
3
7
A
B
C
O
8
D
E
8
F
Al
G
27
H
I
13
The answers are …
Element
Atomic #
Atomic
Mass
Protons
Neutrons
Electrons
Li
3
7
3
A
B
4
C
3
O
8
16
D
8
E
8
8
F
Al
13
G
27
13
H
14
I
13
Time for a little balance in
your life 
• H2 + O2
H2O
• 2H2 + O2
2H2O
• Ever heard of Photosynthesis?
• CO2 + H2O +Light Energy
C6H12O6 + O2
• 6CO2 + 6H2O +Light Energy
C6H12O6 + 6O2
Time to get a little “elemental”
• Hydrogen, Lithium, Sodium,
Potassium, Rubidium, Cesium,
Francium
• All these elements are what kind
of metals?
• Alkaline Metals
• He, Ne, Ar, Kr, Xe, Rn
• What type of gasses are
these?
• Noble Gasses
Name that Symbol
•
•
•
•
•
•
•
Al •
B •
C •
Cu •
Au •
He •
Fe •
Aluminum
Boron
Carbon
Copper
Gold
Helium
Iron
Here are some more...so what are
the symbols?
Sulfur
Sodium
Silver
Nickel
Oxygen
Nitrogen
Mercury
S
Na
Ag
Ni
O
N
Hg
Ok, now lets see how good your
memory really is 
• What are the Seven Diatomic Elements?
• Want a hint?
• While you are thinking..did I mention that
I bought a new house over the weekend?
• Yeah, next to the pottery store
• Every night I bring clay for our new home
• lol
• I = Iodine
• Bring = Bromine
• Clay = Chlorine
• For = Fluorine
• Our = Oxygen
• New = Nitrogen
• Home = Hydrogen
Draw the Lewis dot structures for
the following examples
2 chlorine atoms bonded together
Carbon and Hydrogen (how many H do you need?)
•
•
•
•
•
What group is Argon in?
Group 18
What row is Sodium in?
Row 3
Which grouping of elements is considered
inert, and does not like to bond with
others?
• Noble gasses, group 18
• Which has more valance electrons orbiting
around it: Strontium or Radon?
• Radon has 8 while Strontium only has 2
So, it is positive, negative or
neutral?
• Proton
• Neutron
• Electron
• Cation
• Anion
• Positive
• Neutral
• Negative
• Positive
• Negative
So..is your brain squishy squishy
yet?