Worksheet with instructions on finding answers using a periodic table.

- Use a Periodic Table to find the atomic number (which equals the number of protons and electrons in a neutral atom) for each element.
- For question 1, look up the atomic number for Calcium, Iron, Gold, Copper, and Lithium.
- For question 2, look up the atomic mass for Zinc, Iron, Potassium, and Copper.
- For question 3, compare the atomic numbers of Calcium, Gold, Copper, and Iron to see which has the most protons.
- For question 4, the number of electrons in a neutral atom equals its atomic number; look up the atomic number for Gold, Iron, Copper, and Lithium.
- For question 5, find the atomic number of Neon and compare it to the atomic numbers of other elements listed.
- For question 6, find the atomic numbers of Mercury and Tin; if Mercury’s atomic number is higher, it has more protons/electrons.
- For question 7, compare the atomic numbers of Potassium and Neon.
- For question 8, compare the atomic numbers of Hydrogen and Lithium.
- For question 9, compare the atomic numbers of Sulfur and Iodine.
- For question 10, use the Periodic Table to match element names with their symbols or symbols with their names.