Periodic Table Crossword

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Across
  1. 2. I am in group 14 and period 2 who am i?
  2. 7. I am the second element on the periodic table
  3. 9. The periodic table is arranged in row and what else?
  4. 11. I am the first of the alkali earth metals
  5. 12. I am a non metal and my atomic number is 9
  6. 13. What does the periodic table show? Starts with E
  7. 17. I have 10 protons who am i?
  8. 18. My atomic mass is 14
Down
  1. 1. I am a metalloid and my Symbol is B
  2. 3. My symbol is O
  3. 4. I am the first alkali metal
  4. 5. What are the vertical columns called ?
  5. 6. What is another name for the vertical columns that are called groups?
  6. 8. Looking at the first 10 elements on the periodic table, How many are noble gases?
  7. 9. If i have an atomic mass of 35 what element am i?
  8. 10. I am the first element on the periodic table
  9. 13. How many groups exist on the periodic table?
  10. 14. What kind of gas is helium?
  11. 15. What are the rows called?
  12. 16. Does the atomic number increase or decrease when going left to right