Multiple choice general knowledge science & technology

Elements with atomic number greater than what exihibit natural radioactivity

  1. 81

  2. 82

  3. 91

  4. 92
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Elements with atomic number greater than 82 (lead) exhibit natural radioactivity. This is because all nuclei beyond lead are unstable and undergo radioactive decay. The elements from atomic number 83 onwards are naturally radioactive.

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