Multiple choice general knowledge math & puzzles

Zero has been proposed as the atomic number of the theoretical element

  1. beryllium-14

  2. tetraneutron

  3. lithium-11

  4. Dineutron
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B Correct answer
Explanation

Tetraneutron is a hypothetical particle consisting of four neutrons, which would have atomic number zero (no protons). It was proposed theoretically but never conclusively observed. The other elements have non-zero atomic numbers or different neutron configurations.

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