Download North Haven Public Schools Curriculum

North Haven Public Schools Curriculum
Unit Title/ focus: Atomic Structure
Textbook: Prentice Hall Chemistry – Chap. #4, 5.1, 25.1 – 25.3, 10.1, 10.2
Designer Names (s): Larry Fabianski, Marc Horowitz, Julie Nichols
Subject Area: Chemistry L2/L3
Grade Level: 10, 11, 12
Estimated Amount of Instructional Time: 4.5 weeks
Connecticut State Standards
Atomic and Molecular Structure – The periodic table displays the elements in incerasing atomic number
and shows how periodicity of the physical and chemical properties of the elements relates to atomic
structure.
 The nucleus of the atom is much smaller than the atom, yet contains most of its mass.
 The model of the atom is based on experiments and analyses by many scientists, including Dalton,
Thomson, Bohr, Rutherford, and Millikan.
 The position of an element in the periodic table is related to its atomic number.
Conservation of Matter and Stoichiometry – The conservation of atoms in chemical reactions leads to the
principle of conservations of matter and the ability to calculate the mass of products and reactants.
 The quantity one mole is set by defining one mole of carbon; 12 atoms to have a mass of exactly
12 grams.
 One mole equals 6.02 x 1023 particles (atoms or moles)
 The mass of a substance can be converted to moles, number of particles, or volume of gas at
standard temperature and pressure.
Big Ideas
Enduring Understandings
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The model of the atom is based on experiments and analyses by many scientists.
The Periodic Table provides information needed to determine atomic structure/particles.
The nucleus of an atom is small but contains the majority of it’s mass.
Isotopes of an element can vary in mass and relative abundance.
The Mole concept is a convenient way to describe chemical quantities.
Avogadro’s number equals 6.02 x 1023 particles.
Essential Questions
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How have scientists contributed to our understanding of the Atomic Model over time?
How do we use the Periodic Table to determine the number of particles present in an atom?
How do we use relative abundance and isotopic mass to calculate average atomic mass?
How do we use isotopic symbols to describe nuclear changes?
What is radioactivity and why do substances decay at a predictable rate?
How do we define the mole and use it in calculations?
What Students Should Know and Be Able to Do
(Skills and Knowledge)
Prerequisite Concepts/Skills
Students will…
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Have a basic understanding of how to read the Periodic Table
Be able to calculate/convert values based on unit ratios.
Be able to complete calculations using significant figures.
Have a basic understanding of how to calculate a weighted average.
Know the basic properties of the p/n/e.
Knowledge
Students will…
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Be able to describe the major contributions made by scientists to the atomic model.
Understand the differences between the types of nuclear reactions.
Understand the concept of the mole.
Skills
Students will…
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Be able to calculate numbers of p/n/e.
Be able to write isotopic symbols/notation.
Calculate average atomic masses for isotopes.
Write nuclear reactions.
Be able to solve simple half-life problems.
Perform conversions between mass, mole and liter.
Vocabulary
atom
neutron
mass number
Thomson model
Bohr model
average atomic mass
nuclear equation
beta particle
mole
molar mass
law of definite proportions
electron
Dalton’s theory/model
Rutherford model
ion
atomic mass unit (amu)
fission
half-life
Avogadro’s number
proton
atomic number
Democritus
alpha particle
isotope
radioactive decay
fusion
plum pudding model
nucleus
Pacing Guide
Unit 2: Atomic theory – 9 class blocks
How have scientists contributed to our understanding of the Atomic Model over time?
 Development of atomic theory – 1 block
o Major Theories
o Major Differences
How do we use the Periodic Table to determine the number of particles present in an atom?
How do we use relative abundance and isotopic mass to calculate average atomic mass?
 Parts of the atom – 2 blocks
o Determining numbers of p/n/e
o Atomic Mass vs. Atomic Number
o Ions and Isotopic symbols
o Average atomic mass
How do we use isotopic symbols to describe nuclear changes?
What is radioactivity and why do substances decay at a predictable rate?
 Nuclear chemistry – 2 blocks
o Radioactive decay (alpha, beta, gamma, etc.)
o Fusion and Fission
o Half life and stability
How do we define the mole and use it in calculations?
 Mole concept/Avogadro’s Number – 1 block
o Mass vs. Mole
o Mole vs. Liter
o Dimensional Analysis
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LABS: Isotopes of Pennium (1 block)
Assessment Evidence
Required Assessments:
Two quizzes
End of Unit Test
Supplemental Assessments:
Lab reports
Lab activities: Planet XENO Laboratory and Isotopes of Pennium