Question

label the particle diagrams as an element or compound.

Explanation:

Step1: Recall element - compound definition

An element has only one type of atom, a compound has two or more different types of atoms chemically combined.

Step2: Analyze diagram 1

All particles are the same type (double - circle), so it is an element.

Step3: Analyze diagram 2

All particles are single - circle of the same type, so it is an element.

Step4: Analyze diagram 3

Particles have two different types of atoms combined, so it is a compound.

Step5: Analyze diagram 4

All particles are the same type (triangle), so it is an element.

Step6: Analyze diagram 5

Particles have two different types of atoms combined, so it is a compound.

Step7: Analyze diagram 6

All particles are the same type (double - circle), so it is an element.

Step8: Analyze diagram 7

Particles have two different types of atoms combined, so it is a compound.

Step9: Analyze diagram 8

All particles are the same type (cluster of circles), so it is an element.

Step10: Analyze diagram 9

All particles are the same type (double - square), so it is an element.

Answer:

1. Element
2. Element
3. Compound
4. Element
5. Compound
6. Element
7. Compound
8. Element
9. Element