Periodic Table

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Across
  1. 3. earth metal an element in column 2
  2. 4. A column of elements:also called a group
  3. 5. Mass The elements are arranged by their
  4. 8. Created the first version of the modern periodic table
  5. 9. Transition Metal Any metal in lanthanide or actinide series
  6. 10. Any of the elements with atomic numbers 90 to 103. most are radioactive
Down
  1. 1. Any of the elements with atomic numbers 58 to 71
  2. 2. metal an element other than hydrogen in column 1
  3. 6. An element in column 17;very reactive
  4. 7. A row of elements in periodic table