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09.10.12 Atomic Number
*Place the title and date at the top
of your paper. Place an “S” in the
margin of your paper then answer
the prompt in a complete sentence.
S: Draw and label the atom. Which particle makes one atom different from another atom?
What the Periodic Table Tells You
P:
Copy & Label:A. Atomic NumberB. Atomic MassC. Chemical SymbolD. Element Name
What the Atomic Number Tells You
•The Atomic Number:•Equals the number of protons in the nucleus•Can also help you determine the number of electrons in an atom•Is easily found on the Periodic Table
P:
Drawing Atoms
If you do not finish its for homework.
A:
What Identifies You as You?
List 5 things thatcan be used to identify you. For example: hair color and height.
C:
Johnny has a test on Atoms this week. He is still having some troubleunderstanding the parts of an atom. Explain the role, location, and chargeof each subatomic particle in an atom to Johnny so he can pass his test!
E:
09.11.12 Atomic Mass*Place the title and date at the top
of your paper. Place an “S” in the
margin of your paper then answer
the prompt in a complete sentence.
S: Copy the image and label each line. What does the Atomic Number tell you about an atom?
Chemical Symbol
Element Name
Atomic Mass? Say What?•The Atomic Mass:
•Equals the number of protons + number of neutrons in the nucleus•Unit = AMU (atomic mass unit)•The exact Atomic Mass is found on the Periodic Table
P:Atomic Mass = # of Protons + # of Neutrons
P: Proton
Neutron
electron
CH 2
Section Review:
Finish:-Read Section 2 pg 44-49. Then complete the Section Review on page 49 1-4.
A:
Identifying Elements
Choose your favoriteelement from thePeriodic Table. Writedown its element name, chemicalsymbol, atomicnumber, atomicmass, # of protons,and # of electrons.
C:
Determine which element each image is depicting.
E:
1. 2.
S: What is a valence
electron? How do
they relate to an
atom’s reactivity?
9.12.12 Valence Electrons
P: Intro To Valence Electrons /
Electron cloud. Carbon AtomThe electron cloud is the group of electrons
revolving around the nucleus of an atom; a cloudlike group of electrons
The valence electrons are found in the outermost energy level of an atom.
1st energy level 2nd energy level (outermost)
Carbon atom has 4 valence electrons.
Valence electrons of an atom are responsible for chemical reactions.
P: Compare reactive elements and stable
elements. Carbon Atom
3.The number of valence electrons determines the number of reactions an atom can make.
4. Oxygen has 6 valence electrons. Carbon has 4 valence electrons. Which atom can react or make more Bonds?
Oxygen Atom Neon Atom
1. Atoms are more likely to be reactive if they have between 1 and 7 valence electrons.
2. An atom that has 8 valence electrons is considered stable and non-reactive because the outermost energy level is completely filled and cannot bond with other atoms.
Ans. Oxygen because it can bond/react6 times compared to carbon that can onlyMake 4 bonds/react at a time.
A: Identify these atoms:
Image# of
Protons
# of Neutro
ns
# of Electro
ns
Atomic Numbe
r
Atomic
Mass
Element Name
Chemical Symbol
1
2
3
4
C: What Questions do you still have before the test on Friday?
OXYGEN ATOMNEON ATOM
E: Compare ElementsDetermine which element is more stable. Explain why?
9.13.12 Atom Jeopardy Review
S:What can the number of protons tell you about an atom?
P, A, & C: Jeopardy Review
E: Questions and Answers
What areas do we need to go over to be successful on tomorrows test?