Recall why Mendeleev left gaps in his version of the periodic table.He ran out of cardsHe thought the gaps were part of the pattern he was searching forHe reasoned that some elements hadn't yet been discoveredI'm not sure
Question
Recall why Mendeleev left gaps in his version of the periodic table.He ran out of cardsHe thought the gaps were part of the pattern he was searching forHe reasoned that some elements hadn't yet been discoveredI'm not sure
Solution
Mendeleev left gaps in his version of the periodic table because he reasoned that some elements hadn't yet been discovered. He noticed that the properties of elements seemed to repeat in a cyclical pattern, and when he arranged the elements in order of increasing atomic weight, there were places where it seemed like an element should be, but no known element fit the pattern. So, he left gaps for these undiscovered elements, predicting their properties based on the pattern. This showed a deep understanding of the periodic law, and his predictions were later proven correct with the discovery of these elements.
Similar Questions
Why did Mendeleev leave gaps in his version of the periodic table?
Mendeleev left gaps in his periodic table for elements that hadn't been discovered yet.Identify which features of these elements he made predictions about.Their atomic weights onlyTheir atomic weights and propertiesTheir properties only
Describe how Mendeleev convinced the scientific community that his way of organising the elements into a periodic table was correct.
How many elements were uncovered during the discovery of Mendeleev’s periodic table?
What breakthrough did Mendeleev make in devising a periodic table that was accepted by the scientific community?He devised the ‘law of octaves’He published the first full list of all the elementsHe left gaps in the table for unknown elementsHe arranged the elements in order of atomic weight
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