Periodic Table

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