Across
- 2. Which elements has 22 for atomic number?
- 4. What is the atomic number for Lithium?
- 5. Electrons carry positive or negative charge?
- 6. What is the table of elements called?
- 7. How many neutrons does hydrogen have?
Down
- 1. Protons carry positive or negative charge?
- 3. What element has atomic mass of 14.007?
- 5. Which element has 10 for atomic number?