Chapter 9 Atomic Foundations of Matter - Part 4

Why was hydrogen initially used as a reference for atomic weights before carbon-12?

Type: MCQ • Marks: 1
Why was hydrogen initially used as a reference for atomic weights before carbon-12?
Options
A. It formed no compounds
B. It was radioactive
C. It was the heaviest element
D. It was the lightest known element with atomic weight 1
Explanation
Hydrogen was initially chosen because it is the lightest element.
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Class 9th Science (MCQ)

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