1 Parts Of An Atom Worksheet Key - Parts Of An Atom Worksheet An ... - Free Printable

It looks like you've uploaded an image of a worksheet titled "PARTS OF AN ATOM", which includes a table with information about different atoms. The task appears to be completing the table by filling in missing values for protons, neutrons, electrons, mass number, and atomic number based on the given data.

Since I can't view images directly, I’ll help you solve this step-by-step if you provide the specific data from the table (e.g., what's already filled in). However, I can guide you through how to complete such a table using standard atomic principles.

---

🔬 Key Concepts:

1. Atomic Number (Z) = Number of protons
2. Mass Number (A) = Protons + Neutrons
3. Electrons = Protons (in neutral atoms)
4. Neutrons = Mass Number – Protons

---

🧩 Example Problem (Typical Table Format):

Let’s assume your table has columns like:

| Element | Protons | Neutrons | Electrons | Mass Number | Atomic Number |
|--------|---------|----------|-----------|-------------|----------------|
| Carbon | 6 | 6 | 6 | 12 | 6 |
| Oxygen | 8 | ? | ? | ? | 8 |

We can fill it out using the rules above.

---

✔ Step-by-Step Solution:

For Oxygen:
- Atomic Number = 8 → So, Protons = 8
- In neutral atom: Electrons = 8
- If Mass Number = 16 (common isotope), then:
- Neutrons = 16 – 8 = 8

So completed row:
| Oxygen | 8 | 8 | 8 | 16 | 8 |

---

💡 Tips for Completing the Table:

- If mass number is missing:
→ Add protons and neutrons.
- If neutrons are missing:
→ Subtract protons from mass number.
- If electrons are missing and atom is neutral:
→ Equal to number of protons.
- If atomic number is missing:
→ Equal to number of protons.

---

📝 Please Provide:

To give you the exact solution, please type out the table data from your image (what's already filled in), and I’ll complete it for you.

For example:
> "The first row has: Element: Hydrogen, Protons: 1, Neutrons: 0, Electrons: ?, Mass Number: ?, Atomic Number: ?"

Then I’ll fill in the blanks and explain each step.