Dmitri Mendeleev — "The elements, if arranged according to their atomic weights, exhibit an apparent…"
The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.
The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.
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"The chemical elements are not created, but are transformed."
"By gradually studying matter, people finally take command of it."
"Knowledge is a holy thing, and it is a sacred duty to transmit it to others."
"Work, look for peace and calm in work: you will find it nowhere else."
"If statements of fact themselves depend upon the person who observes them, how much more distinct is the reflection of the personality of him who gives an account of methods and of philosophical specu…"
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