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Atomic Structure
Chemical Nomenclature

This unit is filled with basic, important skills needed to be able to read and write chemical formulas. Students will learn about the relationship between an element's position on the periodic table and its atomic structure. They will then work on the rules for naming and writing formulas for ionic compounds, covalent compounds, and acids. They will also learn about ionic and isotope notation.


Atomic Structure and the Periodic Table

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View the Atomic Structure and Periodic Table worksheet.

Purpose: This is a worksheet that introduces the relationship between an element's position on the periodic table and its atomic structure. Students will learn about protons, neutrons, and electrons, and how to determine the number of each based on an element's atomic mass and atomic number.

Essential Concepts: Periodic table, protons, neutrons, electrons, atomic mass, atomic number.


Exploring the Periodic Table

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Purpose: Students need to have a solid understanding of the basic layout and design of the periodic table to be successful in chemistry. In this assignment, students will color-code a blank periodic table with important familes, such as the transition metals, alkali metals, and halogens. There are also multiple questions that require students to search through the elements for ones named for specific reasons, such as after a country or a person.

Essential Concepts: Periodic table, metals, nonmetals, metalloids, periods, families, groups, alkali metals, alkaline earth metals, transition metals, halogens, noble gases, lanthanides, actinides.


Extra Practice Worksheet - Using the Periodic Table

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Purpose: This is a worksheet of practice problems I assign to students who are had difficulty with the Exploring the Periodic Table worksheet or did poorly on the quiz based on that material. Students are given a shortened periodic table to analyze, then a list of elements they have to calculate the protons, neutrons, and electrons for.

Essential Concepts: Periodic table, metals, nonmetals, metalloids, periods, families, groups, alkali metals, alkaline earth metals, transition metals, halogens, noble gases, lanthanides, actinides, electrons, neutrons, protons..


Ions and Ion Notation

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View the ions and ion notation worksheet.

Once students understand the basic structure of a neutral atom, they can begin to learn some of the changes that can occur to them. One of those is the formation of an ion, when an atom gains or loses electrons and becomes charged. This worksheet will help them visually understand how ions are formed, and give some practice on writing ion notation.

Essential concepts: Ions, ion notation, electrons, cations, anions.


Isotopes and Isotope Notation

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View the isotopes and isotope notation worksheet.

Purpose: Many elements exist in more than one isotope, where they have different numbers of neutrons and different masses. This worksheet will give students some visual examples of how isotopes are different, and allow them to practice writing isotope notation.

Essential Concepts: Isotopes, isotope notation, neutrons, atomic mass.


Extra Practice Worksheet - Ion and Isotope Notation

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View the ion and isotope notation practice worksheet.

Purpose: This is a worksheet of extra practice problems for students who struggled with the ions and ion notation worksheet, and/or the isotopes and isotope notation worksheet. Students are given a simple table that gives limited information about an isotope or ion, and they fill in the rest.

Essential Concepts: Ions, ion notation, electrons, anions, cations, Isotopes, isotope notation, neutrons, atomic mass.


Calculating Average Atomic Mass

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Purpose: Part of understanding isotopes is realizing how their abundance determines the average atomic mass shown with each element of the periodic table. This worksheet will show students how these numbers are calculated, and help them understand why the atomic mass of oxygen is 15.99 AMU instead of simply 16 AMU.

Essential Concepts: Isotopes, average atomic mass, isotope abundance, atomic mass units.


Nomenclature of Simple Ionic Compounds

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View the ionic nomenclature worksheet.

Purpose: This is the first step for chemistry students learning how to name chemical compounds. This worksheet first covers the importance of valence electrons and oxidation number to making ionic compounds, then how they are named.

Essential Concepts: Ions, ionic bonding, ionic compounds, ionic nomenclature, oxidation number, valence electrons.


Nomenclature of Transition Metal Ionic Compounds

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View the transition metal nomenclature worksheet.

Purpose: This is a follow-up to the ionic nomenclature worksheet that introduces transition metals. Students will learn how to assign Roman numerals to transition metals to indicate their charge, and how to use anion charges to figure out the oxidation number of a transition metal.

Essential Concepts: Ions, ionic bonding, ionic compounds, ionic nomenclature, oxidation number, transition metals.


Nomenclature of Polyatomic Ions

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View the polyatomic compound nomenclature worksheet.

Once students are familiar with the steps in naming simple (or monatomic) compounds, they are introduced to polyatomic ions. Students will need to copy of a polyatomic ions reference list with their periodic table to be able to complete this worksheet.

Essential concepts: Ions, ionic bonding, ionic compouds, polyatomic ions, ionic nomenclature.


Nomenclature of Acids

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View the acid nomenclature worksheet.

The last, and most difficult step in learning to name ionic compounds is acids. Students often have a lot of difficulty remembering the rules for binary and ternary acids. This worksheet goes over the -ous and -ic rules for ternary acids, as well as the hydro- rule for binary acids. Students will need to copy of a polyatomic ions reference list with their periodic table to be able to complete this worksheet.

Essential concepts: Acid nomenclature, binary acids, ternary acids.


Nomenclature of Covalent Compounds

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View the covalent compound nomenclature worksheet.

The last step in chemical nomenclature is covalent compounds. Fortunately, the rules for these are pretty simply, as long as students are familiar with the prefixes for 1 through 10. This worksheet lists and explains those prefixes and gives a list of practice problems.

Essential concepts: Covalent compounds, covalent nomenclature.


Nomenclature of Atoms and Compounds Study Guide

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View the introduction to chemistry unit study guide

Purpose: Once the instruction for the unit is completed, students can complete this study guide to aid in their preparation for a written test. The study guide is divided into two sections: vocabulary and short answer questions. The vocabulary words can be found scattered throughout the different instructional worksheets from this unit. The short answer questions are conceptual and meant to see if the students are able to apply what they've learned in the unit.

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