Grade 8 Science P6 Jinhee Phetlab: Building A Molecule Directions: Click here to get to Build a Molecule Phetlab. Choose “Download” and then open the file once it has finished downloading. Clip this PDF to your Evernote Science Notebook and use the markup tool to answer the following questions in complete sentences. 1.)
Using your prior knowledge, list the number of valence e­ for families 1,2,13­18. ­ Family 1: 1ve­ / Family 2: 2ve­ / Family 13: 3ve­ / Family 14: 4ve­ / Family 15: 5ve­ / Family 16: 6ve­ / Family 17: 7ve­ / Family 18: 2ve­, 8ve­ 2.)
Using your prior knowledge, list the charges of the ions formed by families 1,2,13­18. ­ Family 1: +1 Cation / Family 2: +2 Cation / Family 13: +3 Cation / Family 14: +4 Cation or ­4 Anion / Family 15: ­3 Anion / Family 16: ­2 Anion / Family 17: ­1 Anion / Family 18: 0 For questions 3 & 4: ● Click on the Make Molecules tab. ● Begin using atoms to form the molecules in the collection on the right side of the window. ● If you run out of atoms, click refill kit. ● If you need different atoms, click on the arrows for new kits. ● Once you complete a molecule, drag it into it’s labeled box over in the collection. ● Complete 3 collections. ● Click on the 3D icons to view both space­filling and ball­and­stick models 3.)
Clip any two ball­and­stick models of a molecule here. 4.)
Clip any two space­filling models of a molecule here. For questions 5 ­ 9 : ● Click on the Larger Molecules tab. ● If you run out of atoms, click refill kit. ● If you need different atoms, click on the arrows for new kits. 5.) Form molecules of HBr, HF, and HCl. Predict what a molecule of Li and F would look like, and explain why you think that. 6.)
7.)
Look at your molecule for Lithium and Fluorine. ● Is Li a metal, metalloid, or nonmetal? Li is metal. ● Is F a metal, metalloid, or nonmetal? F is nonmetal. Skim chapter 6, section 2 in your textbook. Look for information about bonds between these types of elements. ● Identify and define this type of bond. Ionic bonds are formed when nonmetal and metal combined. It has high melting and boiling point. 8.)
Form molecules using one nitrogen atom, one carbon atom. ● Look at the ball­and­stick model and count how many bonds you see forming this molecule. There are 3 bonds in the model. ● Is carbon a metal, metalloid, or nonmetal? Carbon is nonmetal. ● Is nitrogen a metal, metalloid, or nonmetal? Nitrogen is nonmetal. 9.)
Skim chapter 6, section 2 in your textbook. Look for information about bonds between these types of elements. ● Identify and define this type of bond. Covalent bond forms both the molecules and compound network. It has low melting and boiling point. It is sharing the electrons.