1. Weighted average of mass of an element? - Atomic mass
2. What is oxygen? - O
3. What is column 2? - Alkaline earth metals
4. What is column 18? - Noble gases
5. What element has the atomic mass of 1.008? - Hydrogen
6. What element has the symbol S? - Sulfur
7. What is another name for rows? - Periods
8. Who created the Periodic Table? - Dmitri Mendeleev
9. What kind of element is Helium? - Noble gas
10. AU is what for Gold? - Symbol
11. What are the horizontal lines called? - Periods
12. How many protons does boron have? - 5
13. The amount of protons is equal to the what? - Atomic number
14. What is column 17? - Halogens
15. What are the vertical lines called? - Groups
16. What is hydrogen? - H
17. All elements have protons neutrons and what? - Electrons
18. What is another word for columns? - Groups
19. Columns 3-12 are what kind of metals? - Transition metals
20. What is column 1? - Alkali metals
Parent Tip: Review the logic above to help your child master the concept of periodic table puzzle worksheet answers.