General Instructions

In this activity, you will describe the atomic theory of matter, atomic structure and symbolism, and the chemical and electronic structure of atoms. You will also use appropriate equations to calculate related light-wave properties such as period, frequency, wavelength, and energy. To achieve this, you must review all the study materials for module three on atomic theory and structure.

Step 1: Select and Reflect

Select one of the topics below and demonstrate your understanding of them in theoretical and practical settings.

• Atomic theory of matter
• Atomic structure and symbolism
• Chemical and electronic structures of atoms
• Chemical formulas
• Electromagnetic energy

Step 2: Respond

Using supporting data for your arguments, prepare a 300-350 words written piece which discusses any of the following: 

• Discuss the practical implications of the atomic theory of matter for everyday life.
• Describe the difference between the atomic number and mass number of an atom and how they correspond to the atom's symbol.
• Describe the effects that adding electrons to an atom will have on its chemical and electronic structure.
• Describe how to use chemical formulas to predict the properties of a given compound.
• Discuss equations used to calculate the period, frequency, wavelength, and energy of light waves and how these properties relate to each other.

Step 3: Share 

To share your work, click on the “Add a new discussion topic” button under this post and paste your work into the “Message” box. Make sure to reference others’ intellectual property when necessary. All references should follow 7th Edition APA formatting. For further instructions, see the resource on the Himmelfarb Health Sciences Library: APA citation resource (N.B.: references are excluded from word counts).

Step 4: Interact 

To complete the activity, evaluate and categorize the work from one of your peers based on items A - E of the rubric below. Provide a rationale for the grade you have provided and comments or suggestions for improvement. To post a reply, click “Reply” on a particular discussion, write your feedback, and click “Post to forum.” You can use the list below as an example:

Item A is ____________ because ____________. My suggestions for improvement are ____________.
Item B is  ____________because ____________. My suggestions for improvement are____________.
 Item C is  ____________because ____________. My suggestions for improvement are ____________.
 Item D is ____________ because ____________. My suggestions for improvement are ____________.
 Item E is  ____________because ____________. My suggestions for improvement are ____________.

OPTIONAL Step 5: Interact (10 minutes)

If you would like to, you can reply to your peers' posts in a respectful and professional manner. Ensure that your post engages your peers' ideas by including a reflection on their comments, sharing ideas of other potential difficulties and parties involved, or asking thought-provoking questions. If a peer comments on your posting, please reply. To post a reply, click “Reply” on a particular discussion, write your feedback and then click on “Post to forum.”