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प्रश्न
Why did Mendeleev's leave some gaps in his periodic table os elements? Explain your answer with an example.
उत्तर
He left gaps in the table for the undiscovered elements. He discovered the properties of such elements with the help of neighboring elements.
He discovered eka-silicon with atomic mass of 72 which was later named Germanium with atomic mass 72.6.
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संबंधित प्रश्न
Use Mendeleev’s Periodic Table to predict the formulae for the oxides of the following elements:
K, C, Al, Si, Ba.
On what basis did mandeleev arrange the elements in his periodic table?
Write a short note.
Mendeleev’s periodic law.
Use Mendeleev's Periodic Table to predict the formula of hydrides of carbon and silicon.
Which group of elements was missing from Mendeleev's original periodic table?
How did Mendeleev arrange the elements in the periodic table?
According to Mendeleev’s periodic law properties of elements are ______.
The total number of electrons present in the first twenty elements of the periodic table is ______
Give an account of the process adopted by Mendeléev for the classification of elements. How did he arrive at “Periodic Law”?
List the features of Mendeleev’s Periodic Table.
