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Atomic number, Atomic Mass and Isotopes Worksheet and PowerPoint

Grade Levels
8th - 10th
Formats Included
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15 pages
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  1. Four NO PREP lesson bundle to teach your High School students Atomic Structure, Atomic Mass & Isotopes, Ionic and Covalent Bonding and two active learning activities to assess your students understanding. Each resource contains an interactive PowerPoint and either individual worksheet or an 18-p
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  2. Teach your students atomic structure, Bohr models of electrons, atomic number, mass number, isotopes and relative atomic mass with these two complete lessons including an interactive PowerPoint and worksheets Includes extension materials for fast finishers. This is a growing bundle and will be perio
    Save $2.50


No prep complete lesson to teach students how the number of protons, neutrons and electrons in an atom are calculated along with what isotopes are and how the relative atomic mass of isotopes is determined.

Includes interactive PPT with 3 page worksheet teaching students atomic number, atomic mass, isotopes and relative atomic mass along with self assessment and extension exercises

Learning Objectives

• Be able to define (a) atomic number, (b) atomic mass, (c) isotope and (d) relative atomic mass (Ar)

• Be able to calculate the number of protons, neutrons and electrons using an element’s atomic number and atomic mass

• Be able to work out which isotope is most abundant when given the atomic mass and relative atomic mass

Please see the preview for all material

This product aligns with NGSS HS-PS1-1

Prior knowledge needed

Atomic structure and a basic understanding of the periodic table

Have a look at my other atom and bonding resources:

Atoms and Bonding Code Breaker Activity

Atoms and Bonding MAZE Activity

Ionic Bonding Activity and worksheet - learn to write ionic formula

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Ionic and Covalent Bonding Worksheet, PowerPoint and Activity BUNDLE

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Total Pages
15 pages
Answer Key
Teaching Duration
1 hour
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to see state-specific standards (only available in the US).
Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms. Examples of properties that could be predicted from patterns could include reactivity of metals, types of bonds formed, numbers of bonds formed, and reactions with oxygen. Assessment is limited to main group elements. Assessment does not include quantitative understanding of ionization energy beyond relative trends.


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