This class will meet Fridays from 1pm-3pm EST. September 17th. Atoms and molecul3 / 2309/17/2109/17/21
This class will meet Fridays from 1pm-3pm EST. September 24th. Atoms and molecul3 / 2309/24/2109/24/21
This class will meet Fridays from 1pm-3pm EST. October 1st. Atoms and molecules5 / 2310/01/2110/01/21
- Atoms and elements can be represented in several ways, including ball and stick models and chemical formula.
- Different representations are useful for different situations.
- Understand the meaning of valency.
- MS-ETS1-2. Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
Guiding IdeasLesson 5 Chemical formula provide information about how many atoms of a particular element are in a molecule. Structures provide information about how the atoms are arranged in space and how they bond to each other. Atoms are commonly represented by balls of different colors. By convention the colors schemes used are: Hydrogen - White Carbon - Black Oxygen - Red Sulfur - Yellow Nitrogen - Blue Phosphorus - purple Halogens (chlorine, bromine, iodine, fluorine) - green Metals - Grey Three dimensional molecular models are built by connecting these balls together with sticks that represent chemical bonds. Two dimensional models are drawn using the elements' chemical symbol and connecting the atoms with lines. Elements can form different number of bonds, this is known as valency. For example, carbon can form 4 bonds so we say it has a valency of four. Hydrogen has a valency of one, so it can only form 1 bond. This means that 1 carbon can form bonds with 4 hydrogen atoms, to create CH4. Oxygen has a valency of two, nitrogen (normally) has a valency of 3. Students may discover that a chemical formula does not always provide enough information to be able to build a molecular structure. There are 2 ways that C4H10 can be constructed. These 2 molecules are known as isomers. Isomers are molecules that have the same formula but different structures.
Student ActivitiesStudents should create simple structures to represent atoms of a particular element using, for example, colored wool. First create molecular models of compounds containing just carbon and hydrogen (hydrocarbons). Then increase the complexity of the molecule by introducing oxygen and nitrogen. Alternatively students can create two dimensional representations of molecules using the element blocks available in Minecraft. For guidance students can look for compounds in Minecraft that contain carbon, hydrogen, oxygen and/or nitrogen and then try and build structures of these molecules.
Performance expectationsCreate representations of atoms. Build molecular structures.
- Critical thinking
- Locate Your EduMEE Email Account Information Unlimited
- Download and Sign into M:EE Unlimited
- Open MS Teams and find your Class meeting link Unlimited
- Joining An EduMEE Class Meeting in Teams Unlimited
- Ensure your camera and microphone work properly Unlimited
- Check other Features on Your EduMEE App Unlimited
- Atoms and Molecules with Caitlin Eyvaz: Friday 1pm-3pm EST Sept 10th Unlimited
- Atoms and Molecules with Caitlin Eyvaz: Friday 1pm-3pm EST Sept 17th Unlimited
- Atoms and Molecules with Caitlin Eyvaz: Friday 1pm-3pm EST Sept 24th Unlimited
- Atoms and Molecules with Caitlin Eyvaz: Friday 1pm-3pm EST Oct 1st Unlimited
Caitlin Alice Sullivan Eyvaz
My name is Caitlin, and most of my teaching experience has been at international schools. I taught in France, Turkey, Turkmenistan, and Bosnia and Herzegovina. I love teaching, hiking, and traveling.