Let's solve
Part 1: Atomic Number using the Periodic Table provided.
We need to find the
atomic number (the number of protons in the nucleus) for each element listed. The atomic number is located
on the top-left corner of each element’s box in the periodic table.
Here are the answers:
---
1.
Hydrogen
- Symbol: H
- Atomic number:
1
2.
Oxygen
- Symbol: O
- Atomic number:
8
3.
Magnesium
- Symbol: Mg
- Atomic number:
12
4.
Vanadium
- Symbol: V
- Atomic number:
23
5.
Krypton
- Symbol: Kr
- Atomic number:
36
6.
Ruthenium
- Symbol: Ru
- Atomic number:
44
7.
Cerium
- Symbol: Ce
- Atomic number:
58
8.
Iridium
- Symbol: Ir
- Atomic number:
77
9.
Bismuth
- Symbol: Bi
- Atomic number:
83
10.
Uranium
- Symbol: U
- Atomic number:
92
11.
Fermium
- Symbol: Fm
- Atomic number:
100
12.
Darmstadtium
- Symbol: Ds
- Atomic number:
110
---
✔ Final Answers:
| # | Element | Atomic Number |
|---|------------------|---------------|
| 1 | Hydrogen |
1 |
| 2 | Oxygen |
8 |
| 3 | Magnesium |
12 |
| 4 | Vanadium |
23 |
| 5 | Krypton |
36 |
| 6 | Ruthenium |
44 |
| 7 | Cerium |
58 |
| 8 | Iridium |
77 |
| 9 | Bismuth |
83 |
|10 | Uranium |
92 |
|11 | Fermium |
100 |
|12 | Darmstadtium |
110 |
>
✔ All answers are 1, 2, or 3 digits — no letters, as required.
You can now fill these numbers into the blank boxes next to each element on the worksheet.
Parent Tip: Review the logic above to help your child master the concept of introduction to the periodic table worksheet.
