WBCS.LIVE practice question

Which is the lightest gas in the periodic table?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Oxygen
  2. Helium
  3. Hydrogen
  4. Nitrogen

Correct answer and explanation

Correct answer: Hydrogen

Explanation: āœ… Correct Answer: C) Hydrogen šŸ“š Explanation: Hydrogen is the very first chemical element listed in the periodic table, possessing an atomic number of 1. It is the absolute lightest and most abundant gas found in the entire universe. Despite its extreme flammability, it plays a highly crucial role in powering stars like our Sun through nuclear fusion.