NEETChemistryClassification of Elements and Periodicity in Properties
What did Henry Moseley's work demonstrate about atomic number and atomic mass?
Options
- AAtomic number and atomic mass are unrelated.
- BAtomic mass is more fundamental than atomic number.
- CAtomic number is a more fundamental property than atomic mass.
- DAtomic number and atomic mass are equal for all elements.
Correct answer
C. Atomic number is a more fundamental property than atomic mass.
Step-by-step solution
Henry Moseley showed that the atomic number is a more fundamental property of an element than its atomic mass.A plot of √v (where v is frequency of X-rays emitted) against atomic number (Z) gave a straight line and not the plot of vs atomic mass. He thereby showed that the atomic number is a more fundamental property of an element than its atomic mass