Warm Up, November 21st, 2013
1) How many protons, neutrons, and electrons
are in this element?
2) What are the rows
of the periodic table
called? What are the
columns called?
3) How is the periodic table arranged (left to
right)? What does the Atomic # represent? What
does the Atomic Mass represent?
Periodic Table
Make sure your periodic table is out,
you’ll need it for the rest of class.
Chemical Symbols
What the difference between these 2?
Bohr Model
The typical 2-D model of an atom.
Dmitri Mendeleev
The guy who made the Periodic Table
Wegener was German; Mendeleev is…?
Dmitri Mendeleev
The guy who made the Periodic Table
The song came soon after…
So why is it shaped this way (weird)?
So why is it shaped this way (weird)?
It’s because of…electrons!
So each Period of the Periodic Table represents a
shell of electrons…
Look at your Periodic Table! Which
Period is each of these elements in?
Valence Electrons*
The electrons that make up the outermost shell
of an atom.
Elements in the first 3 periods have shell
capacities of 2, 8, and 8.
Atomic Structure
What would an atom of Boron look like?
Atomic Structure
What would an atom of Nitrogen look like?
Atomic Structure
What would an atom of Sodium look like?
Lewis Dot Structure
How to simply show valence electrons.
Periodic Table Brain Pop
Independent/Group Activity
Complete the worksheet. All the information on
it is not only a review of this week, but also a
short but simple study guide for this test!
You can work with the people around you or by
yourself, if you prefer.