Match each atomic number to its element.
1. Which element has the atomic number 11?
- Zinc
- Uranium
- Sodium
- Helium
Atomic number 11 belongs to Sodium (symbol Na). An element's atomic number equals the number of protons in its nucleus.
2. Which element has the atomic number 12?
- Lithium
- Platinum
- Copper
- Magnesium
Atomic number 12 belongs to Magnesium (symbol Mg). An element's atomic number equals the number of protons in its nucleus.
3. Which element has the atomic number 13?
- Aluminium
- Silver
- Iron
- Titanium
Atomic number 13 belongs to Aluminium (symbol Al). An element's atomic number equals the number of protons in its nucleus.
4. Which element has the atomic number 14?
- Silicon
- Manganese
- Potassium
- Platinum
Atomic number 14 belongs to Silicon (symbol Si). An element's atomic number equals the number of protons in its nucleus.
5. Which element has the atomic number 15?
- Lead
- Magnesium
- Phosphorus
- Chlorine
Atomic number 15 belongs to Phosphorus (symbol P). An element's atomic number equals the number of protons in its nucleus.
6. Which element has the atomic number 16?
- Tin
- Nickel
- Iron
- Sulfur
Atomic number 16 belongs to Sulfur (symbol S). An element's atomic number equals the number of protons in its nucleus.
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