JKSSB Mock Tests

Mendeleev's Periodic Law was modified, and was adopted as the basis of the Modern Periodic Table.

A. Atomic mass
B. Molar mass
C. Atomic number
D. Similar properties
Answer: Option C
Solution (By JKSSB Mock Tests Team)
Dmitri Mendeleev originally organized elements by their atomic mass, which occasionally resulted in glaring inconsistencies. Following Henry Moseley's 1913 experiments with X-ray spectroscopy, the law was historically modified to base the table strictly on the atomic number (number of protons).
This Question Belongs to: General science Chemistry set 1
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