Unit Lesson Plan – The Atom
Teacher:
Time Frame:
17 days
Grade:
11
AP Chemistry
School:
Subject:
AP Essential Knowledge
EK 1.B.1 The atom is composed of negatively charged electrons, which can leave the atom, and a positively charged nucleus that is made of protons and neutrons. The attraction of the electrons to the nucleus is the basis of the structure of the atom. Coulomb’s law is qualitatively useful for understanding the structure of the atom.
EK 1.B.2 The electronic structure of the atom can be described using an electron configuration that reflects the concept of electrons in quantized energy levels or shell; the energetics of the electron in the atom can be understood by consideration of Coulomb’s law.
EK 1.C.1 Many properties of atoms exhibit periodic trends that are reflective of the periodicity of electrons structure.
EK 1.C.2 The currently accepted best model of an atom is based on the quantum mechanical model.
EK 1.D.1 As is the case with all scientific models, any model of the atom is subject to refinement and change in response to new experimental results. In that sense, an atomic model is not regarded as an exact description of the atom, but rather a theoretical construct that fits a set of experimental data.
EK 1.D.2 An early model of the atom stated that all atoms of an element are identical. Mass spectrometry data demonstrate evidence that contradicts this early model.
Essential Questions
(What questions will the student be able to answer as a result of the instruction?)
1. What is matter?
Knowledge & Skills
(What skills are needed to achieve the desired results?)
By the end of this unit, students can:

SP 1.4 Use representations and models to analyze situations or solve problems qualitatively and quantitatively.

SP 1.5 Re-express key element of natural phenomena across multiple representations in the domain.

SP 3.1 Pose scientific questions.

SP 5.1 Analyze data to identify patterns and relationships.

SP 5.3 Evaluate the evidence provided by data sets in relation to a particular scientific question.
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SP 6.1 Justify claims with evidence.

SP 6.2 Construct explanation of phenomena based on evidence produced through scientific
By the end of this unit, students will be able to:

LO 1.5 Explain the distribution of electrons in an atom or ion based upon data.

LO 1.6 Able to analyze data relation to electron energies for patterns and relationships.

LO 1.7 Describe the electronic structure of the atom, using PES-data, ionization energy data, and/or
Coulomb’s law to construct explanations of how the energies of electrons within shells in atoms vary.

LO 1.8 Explain the distribution of electrons using
Coulomb’s law to analyze measure energies.

LO 1.9 Predict and/or justify trends in atomic properties based on location on the periodic table and/or the shell model.

LO 1.10 Justify with evidence the arrangement of the www.njctl.org AP Chemistry Atoms

practices.

SP 6.3 Articulate the reasons that scientific explanations and theories are refined and replaced.

SP 6.4 Make claims and predictions about natural phenomena based on scientific theories and models.
periodic table and can apply periodic properties to chemical reactivity.

LO 1.11 Analyze data, based on periodicity and the properties of binary compounds, to identify patterns and generate hypotheses related to the molecular design of compounds for which data are not supplied.

LO 1.12
Explain why a given set of data suggests, or does not suggest, the need to refine the atomic model from a classical shell model with the quantum mechanical model.

LO 1.13 Determine if the model is consistent with specified evidence.

LO 1.14
Use data from mass spectrometry to identify the elements and the masses of individual atoms of a specific element.
Assessment
(What is acceptable evidence to show desired results (rubrics, exam, etc.)? Attach Copy
During the Smart Notebook lesson designed to introduce concepts, students will be continually questioned on these concepts using a combination of class work/homework questions and the SMART Response system. Classwork and
Homework questions will be discussed as a class and misconceptions will be addressed by the teacher prior to the formal evaluations listed below.
Formative Evaluations:
Experimental Design Activity
Summative Evaluations:
Quiz 1
Quiz 2
Quiz 3
Quiz 4
Unit Test
(What is the sequence of activities, learning experiences, etc, that will lead to desired results (the plan)?
Day
Topic Classwork Homework
1 Subatomic Particles
Presentation A: Slides 4-22
Practice Question 1-3
Syllabi
Syllabi
Practice Questions 17-19
2
3
4
5
The Nucleus & Atomic
Mass
Mass Spectrum
Bohr Model
Emission Spectra
Presentation A: Slides 23-
47
Practice Questions 4-8
Practice Questions 20-24
Presentation A: Slides 48-
57
Practice Questions 9-16
Quiz 1
Presentation A: Slides 58-
68
Practice Questions 31-32
Presentation A: Slides 69-
81
Practice Questions 33-37
Practice Questions 25-30
Practice Questions 58-59
Practice Questions 60-64 www.njctl.org AP Chemistry Atoms

11
12
13
14
15
16
16
6
7
8
9
10
Photoelectron
Spectroscopy
Quantum Numbers
Quantum Theory &
Periodic Law
Stability
Atomic Radii
Ionic Radii &
Electronegativity
Ionization Energy
Metallic Character & Ionic
Charge
Experimental Design
Activity
Experimental Design
Activity
Presentation A: Slides 82-
90
Practice Questions 38-43
Practice Questions 65-69
Presentation A: Slides 91-
118
Practice Questions 44-57
Presentation B: Slides 4-24
Practice Questions 86-91
Presentation B: Slides 30-
38
Practice Questions 92-95
Quiz 2
Presentation B: Slides 39-
61
Practice Questions 105-
109
Presentation B: Slides 62-
79
Practice Questions 110-
116
Presentation B: Slides 80-
98
Practice Questions 117-
123
Presentation B: Slides 99-
113
Practice Questions 124-
128
Quiz 3
Experimental Design
Activity
Practice Questions 70-85
Practice Questions 96-100
Practice Questions 101-104
Practice Questions 129-133
Practice Questions 134-140
Practice Questions 141-146
Practice Questions 147-152
Experimental Design
Activity
Review MC/FR
Test Test www.njctl.org AP Chemistry Atoms