SUMMER INSTITUTE – Module 9 – Periodic Table and Bonding
______________________________________________________________________________________________________________________________________ Jump to: Activity 1, Activity 2, Activity 3, Activity 4, Activity 5, Activity 6, Activity 7, Module Test
Module 9 – Periodic Table and Bonding –
5 hours – due August 24th!
* Connections – The electron arrangement and the transitions of electrons in atom is really what determines the chemical properties of elements and compounds. In large part is it what chemistry is really about. We have looked the at the stoichiometry chemical compounds and reactions but none of that would be possible if elements did not bond! Before we begin our bonding discussion we must first start with a brief look at how the periodic table was made and how the electron arrangement or configurations paralleled the early work of the arrangements of elements in the periodic table. You see the periodic table was made to help organize the known elements of the day in some logical fashion. One scientist, Dimitri Mendeleev made a table and said that his table followed a repeating pattern based on increasing atomic mass (it was not known in 1850’s that the proton number was the determining factor in differentiating elements) and changing chemical properties.
|Notice that Co (58.9332) goes in front of Ni (58.693) even though Co has a higher atomic mass!! These 2 elements had to be switched, after Moseley’s work because the periodic table was actually a function of the atomic number NOT ATOMIC MASS that Mendeleev used.|
Activity 1: SKILL – Identify and predict the 3 periodic trends, Electronegativity, Ionization Energy, and Atomic Radius.
1 : Lecture 3.10R
Activity 2: SKILL : Metals/Nonmetals/Metalloids periodic table geography table and the reactivities .
1 : Lecture 3.11R – Families and Reactivities
Activity 3: SKILL: Atomic Radius vs Ionic Radius, Transitional Metals, Phases
1 : Lecture 3.12R – Atomic and Ionic Radius
1 : Lecture 3.13R – Transitional Metals
1 : Lecture 3.14R – Phases of the elements
Activity 4: SKILL:– Observe the periodic trends through Graphs of Data from Elements
2. Write the element’s symbol above each major peak and valley on of the three graphs like this:
Activity 5: SKILL: Intro to Bonding, IONIC Bonds and a little Covalent bonding.
*Important – IT ALWAYS REQUIRES ENERGY TO BREAK BONDS and ENERGY IS ALWAYS RELEASED TO FORM BONDS!
The enthalpy or Heat of reaction when NaCl is formed from its elements is
Lecture 2.17 – Lewis Diagrams of Ionic Compounds.
Activity 6: SKILL: – Covalent Bonds and Lewis Dot Diagrams
1 : Lecture 4.16R – Polar Bonds vs Polar molecules
1 : Lecture 4.14R – Covalent Lewis Structures and polarity
Optional Mini Lectures – If you need more clarity.
Polar and Nonpolar Bonds : Polar and Nonpolar Molecules:
Activity 7: Skill – Metallic Bonds, identification of types of compounds and properties
1 : Metallic Bonding Lecture
2 : Lecture 2.23 – Metallic Bonding and Properties
Module Test 9 – Periodic Table Assessment and Bonding Assessment –
– available below