Periodic Table Crossword

12345678910
Across
  1. 3. this element is the first of the transition metals
  2. 4. this transition metal's atomic symbol is Y
  3. 6. this element is the lightest of the metalloids
  4. 9. this element has a mass of 1.008u
  5. 10. this element is fifth in the noble gases
Down
  1. 1. this element has the highest mass of the alkali metals
  2. 2. this element is the heaviest of the metalloids
  3. 5. this element is a liquid at 0 degrees celsius
  4. 7. this alkali metal was discovered in 1861
  5. 8. this element has the symbol Sb