1. Check the boxes to indicate whether each model shows atoms, molecules, elements, and/or compounds.
- A: Atom ✓, Element ✓
- B: Molecule ✓, Compound ✓
- C: Molecule ✓, Element ✓
- D: Molecule ✓, Compound ✓
- E: Atom ✓, Element ✓
- F: Molecule ✓, Element ✓
2. Which models have molecules? Support your answer with details from the models.
Models B, C, D, and F have molecules. In these models, particles are shown joined together by chemical bonds (represented by lines or connections), which indicates they are molecules. Model B has two different types of atoms bonded, Model C has two identical atoms bonded, Model D has multiple different atoms bonded, and Model F has two identical atoms bonded.
3. Can an element be made of molecules? Support your answer with details from the models.
Yes, an element can be made of molecules. Models C and F show molecules composed of only one type of atom, which fits the definition of an element. For example, Model C shows diatomic molecules of a single element, and Model F also shows diatomic molecules of a single element. Since both are made of only one type of atom and are bonded together, they are molecules that are also elements.
Parent Tip: Review the logic above to help your child master the concept of classification of matter worksheet.
