Learn About Atoms with Free Printable Science Worksheets - Jenny ... - Free Printable

Let's solve this step-by-step based on the image you've provided. This is a science worksheet titled "ATOM LABEL AND DEFINE", where students are asked to:

1. Label parts of an atom diagram.
2. Define key atomic terms.

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🔹 Step 1: Labeling the Atom Diagram

The diagram shows:
- A central cluster (the nucleus) made of red and green spheres.
- Three orange spheres with a minus sign (–), orbiting around the nucleus on elliptical paths.

From the diagram:

- The orange spheres with – signs are electrons.
- The central cluster contains protons (usually red or positive) and neutrons (usually green or neutral).
- The central cluster itself is called the nucleus.

So, labeling from top to bottom (following the lines):

1. Electron → points to one of the orbiting orange particles.
2. Nucleus → points to the central cluster.
3. Proton → points to one of the red spheres in the nucleus.
4. Neutron → points to one of the green spheres in the nucleus.

✔ Labels (from top to bottom):
- Electron
- Nucleus
- Proton
- Neutron

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🔹 Step 2: Definitions

Now, fill in the definitions for each term using the word bank.

| Term | Definition |
|------------|-----------|
| Nucleus | The central part of the atom that contains protons and neutrons. It holds most of the atom’s mass. |
| Protons | Positively charged particles found in the nucleus. The number of protons determines the atomic number of an element. |
| Neutrons | Neutral particles (no charge) found in the nucleus. They contribute to the mass of the atom but not its charge. |
| Electrons | Negatively charged particles that orbit the nucleus in electron shells. They are involved in chemical bonding. |

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✔ Final Answer Summary:

#### Labeling the Diagram (top to bottom):
1. Electron
2. Nucleus
3. Proton
4. Neutron

#### Definitions:

| Term | Definition |
|------------|-----------|
| Nucleus | The central core of the atom containing protons and neutrons. |
| Protons | Positively charged particles in the nucleus; determine the element's identity. |
| Neutrons | Neutral particles in the nucleus; help stabilize the nucleus. |
| Electrons | Negatively charged particles that move around the nucleus in energy levels. |

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This worksheet helps students understand the basic structure of an atom and the roles of its subatomic particles.