8th Grade
8A and 8B August 27th
Trimestral Exam
II Trimester
Topics
The Atom
The Periodic Table
Electrons and
Chemical Bonding
Objectives
Describe the way in which
atoms make up matter.
Describe
the
scientific
contributions to the Atomic
Theory.
Describe the current model of
the atom.
State the location, charge, and
relative mass of protons,
neutrons and electrons in an
atom.
Identify the nucleus and
electron cloud in a model of an
atom.
Determine the atomic number
and mass number of an atom.
Identify the atomic number,
chemical symbol, name, and
average atomic mass of an
element on the Periodic Table.
Compare and contrast the
properties of metals, nonmetals and metalloids.
Describe the arrangement of
elements in groups and
periods on the Periodic Table.
Name symbol and atomic
number of the first 50
elements.
Describe a chemical bond
Describe a chemical change in
terms of chemical bonding.
Distinguish the different roles
of different models of atoms.
Identify Valence Eectrons.
Use de periodic table to
determine the number of
valence electrons in the atoms
of a given element.
Sources
Book: Matter and Energy
Unit 3
Lesson 1
Notebook
Power Point Presentation
Book: Matter and Energy
Unit 3
Lesson 2
Notebook
Book: Matter and Energy
Unit 3
Lesson 3
Notebook
Ionic, covalent and
metallic bonding
Predict given the number of
valence electrons, how an
atom could form bonds with
other atoms.
Explain how ions form
Describe an ionic bond in
terms of electrons
Name the physical properties
that ionic compounds share
Describe a covalent bond in
terms of electrons
Describe molecules
Name the physical properties
that many covalent bonded
molecules share.
Describe the metallic bond in
terms of electrons
Name the physical properties
that many metals share
Book: Matter and Energy
Unit 3
Lesson 4
Notebook