Actinides

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Across
  1. 5. / element number 71
  2. 6. / used in MRI imaging
  3. 7. / this element is a signal amplifier
  4. 8. / this element is radioactive and found in small traces in nature
  5. 9. / Number 67 and is a soft metal
Down
  1. 1. / The largest element of the actinides
  2. 2. / All of the actinides have this characteristic
  3. 3. / The smallest element of the actinides
  4. 4. / Used in lighter
  5. 7. / used in color televisions