Multiple choice general knowledge

Actinides are the elements with atomic numbers from

  1. 97 to 104

  2. 101 to 115

  3. 89 to 103

  4. 36 from 43
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C Correct answer
Explanation

Actinides are the 15 metallic elements with atomic numbers from 89 (actinium) to 103 (lawrencium). They are all radioactive and include uranium and plutonium, the well-known nuclear fuel elements. The lanthanides (atomic numbers 57-71) are sometimes called 'rare earth elements' and share similar chemical properties with actinides.

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