The heaviest man made element found so for is__________?
Correct answer: B. Ununoctium
- A. Promethium
- B. Ununoctium
- C. Francium
- D. Technetium
Explanation
Ununoctium is the former systematic name for oganesson, element 118, the heaviest element synthesized so far. Its modern official name is oganesson.
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