Elements, compounds or mixtures? - Science-Education-Research - Free Printable

To solve the problem, we need to analyze each diagram and determine whether it represents an element, a compound, or a mixture. Here's a step-by-step explanation for each diagram:

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Definitions:

1. Element: A substance made up of only one type of atom.
2. Compound: A substance made up of two or more different types of atoms bonded together in a fixed ratio.
3. Mixture: A combination of two or more substances that are not chemically bonded and can be separated by physical means.

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Analysis of Each Diagram:

#### Diagram 1:
- The diagram shows particles with the same symbol (e.g., "C").
- All the particles are identical, indicating they are the same type of atom.
- This is characteristic of an element.

Conclusion: Element

#### Diagram 2:
- The diagram shows particles with the same symbol (e.g., "I").
- All the particles are identical, indicating they are the same type of atom.
- This is characteristic of an element.

Conclusion: Element

#### Diagram 3:
- The diagram shows particles with two different symbols (e.g., "C" and "H").
- These particles are bonded together in a fixed ratio, forming molecules.
- This is characteristic of a compound.

Conclusion: Compound

#### Diagram 4:
- The diagram shows particles with two different symbols (e.g., "C" and "O").
- These particles are bonded together in a fixed ratio, forming molecules.
- This is characteristic of a compound.

Conclusion: Compound

#### Diagram 5:
- The diagram shows particles with multiple different symbols (e.g., "Na," "Cl," "Xe").
- The particles are not bonded together; they are simply mixed together.
- This is characteristic of a mixture.

Conclusion: Mixture

#### Diagram 6:
- The diagram shows particles with the same symbol (e.g., "He").
- All the particles are identical, indicating they are the same type of atom.
- This is characteristic of an element.

Conclusion: Element

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Final Answers:

1. Element
2. Element
3. Compound
4. Compound
5. Mixture
6. Element

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Boxed Final Answer:

\[
\boxed{\text{Element, Element, Compound, Compound, Mixture, Element}}
\]