What is the important conclusion of Moseley’s experiment? What is the importance of this conclusion regarding the periodic table? [2+1]
WBBSE
Class X
Physical Science
Periodic Table
03 Mark
2026
From Moseley’s experiment, it was concluded that the atomic number, and not the atomic mass, is the fundamental property of an element.
Therefore, the modern periodic law is based on atomic number: The physical and chemical properties of elements are periodic functions of their atomic numbers.
This removed the defects caused by arranging elements according to their atomic masses.
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