The heaviest man made element found so for is__________?

A. Promethium
B. UnunoctiumCorrect Answer
C. Francium
D. Technetium
Correct Option: B. Ununoctium
Detailed Explanation & Reference:

Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).

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