Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Atoms, Elements & CompoundsSome Important Elements
The lightest element is:
- A.Helium
- B.Lithium
- C.HydrogenCorrect answer
- D.Carbon
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Practice these MCQs in the appQuick fact: The lightest element is Hydrogen, with an atomic number of 1 and an atomic mass of approximately 1.008 u.