The weight of the atom is not the only criterion; there are other considerations.
Periodic table of elements
Explaining the deviations in his periodic table from simple atomic weight order
1869
Found in 1 providers: grok
Cross Reference
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"The most all penetrating spirit before which will open the possibility of tilting not tables, but planets, is the spirit of free human inquiry. Believe only in that."
Controversial"The universe is a vast chemical laboratory."
Strange & Unusual"I have been called a charlatan, a madman, and a dreamer, but I have always pursued the truth."
Strange & Unusual"The spirit of scientific inquiry must be cultivated in all children."
Strange & Unusual"The properties of the elements are a periodic function of their atomic weights."
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