The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.
Meaning of the quote
Mendeleev noticed that when you list all the different types of atoms and arrange them by their weight, you see a pattern in their properties. This pattern repeats, like a cycle, as you move from one atom to the next. This discovery helped him create the periodic table, which is used to understand the relationships between all the elements.
About Dmitri Mendeleev
Dmitri Mendeleev was a Russian chemist who is best known for formulating the Periodic Law and creating a version of the periodic table of elements. He used the Periodic Law to correct the properties of some known elements and predict the properties of three elements that were yet to be discovered.
More quotes from Dmitri Mendeleev
No one nor anything can silence me.
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I have achieved an inner freedom.
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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.
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The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.
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The establishment of a law, moreover, does not take place when the first thought of it takes form, or even when its significance is recognised, but only when it has been confirmed by the results of the experiment.
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Pleasures flit by – they are only for yourself; work leaves a mark of long-lasting joy, work is for others.
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There exists everywhere a medium in things, determined by equilibrium.
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There is nothing in this world that I fear to say.
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I want you to have this feeling too – it is my moral responsibility to help you achieve this inner freedom.
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The elements which are the most widely diffused have small atomic weights.
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The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.
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Certain characteristic properties of elements can be foretold from their atomic weights.
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We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75.
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