Multiple choice general knowledge science & technology

What is the first element of Periodic Table?

  1. Oxygen

  2. Carbon

  3. Helium

  4. Hydrogen
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D Correct answer
Explanation

Hydrogen (atomic number 1) is the first and lightest element on the periodic table, with one proton and one electron. Oxygen, carbon, and helium all have higher atomic numbers (8, 6, and 2 respectively).

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